If you take a look at the 3X Pitching Profiles, which are measurements of speeds and distances of some of the best pitcher’s mechanics in the game, you will discover that most of these pitchers have either above average 3X into hip to shoulder separation or below average hip to shoulder separation with above average 2X. To truly understand what is going on here and how this effects velocity, it is important we first understand the relationship of 3X to 2X and hip rotation.

3X to 2X and Hip Rotation

Triple extension (3X) – Is the extension of the drive leg knee, ankle and hip flexor and it will usually extended in that order. The 3X approach to pitching teaches us that achieving 3X before front foot strike will create hip rotation just at or just after front foot strike. It will also promote more explosive hip rotation which leads to optimal hip to shoulder separation. This hip rotation is occurring because when the drive leg achieves 3X, it pushes the hip flexor of the back hip forward before front foot strike. This will just open the hips a little, so when the front leg lands and stabilizes, the hips slam completely open towards the target. If the pitcher does not open the hips through 3X before front foot strike, hip rotation will happen late, reducing hip to shoulder separation.

Double Extension (2X) – This is the extension of the knee and ankle of the front leg at front foot strike into pitch release. The 3X approach to pitching also teaches us that achieving 2X before pitch release is critical to support hip to shoulder separation and it will transfer more energy or power into the ball increasing velocity. Taking 2X even farther into hyper-extension will force the hips to completely open towards the target. We know the more open the hips are towards the target at release, the more front leg extension will occur which will put more power and energy into the ball, increasing pitching velocity.

How 3X and 2X together Promote High Pitching Velocities

The best way to understand the relationship of 3X to 2X, is using the car crash analogy, which I have used a few times on this site. 3X would be the high performance car heading towards an immovable brick wall (2X). The passenger (test dummy) in the car is the ball. We do not know the effect of 3X to 2X until the car hits the wall. The farther the passenger flies out of the car, the more effective 3X to 2X worked together.

Just like when pitching, 3X is our acceleration system and 2X is our breaking system. If we increase 3X then 2X must support it to increase pitching velocity and vice versus. They work hand in hand. You can’t have one without the other.

On the elite level, when a pitcher is working to break 90mph, the relationship of 3X to 2X becomes even more important. In the case of Brandon Morrow (see 3X Pitching Profile) he has an above average 3X with a below average 2X and he is a 95+mph pitcher. In the case of Justin Verlander (see 3X Pitching Profile) he has a below average 3X with an above average 2X and he is a 95+mph pitcher. The diamond in the rough here is that both these pitchers have an above average relationship between 3X to 2X. This is why they throw in the upper 90′s.

Let’s look at these pitchers and their 3X to 2X relationship, so we can learn how to improve our relationship of 3X to 2X. Brandon Morrow has one of the best 3X moves in the game but he has a below average 2X move to support it. If you watch his front leg stabilization in slow motion you will see that it never flexes or moves after front foot strike, it is stabilizing and supporting his explosive 3X, like the immovable brick wall in the car crash analogy. This is allowing all that power from 3X to slam the hips open into his stabilized but not extended front leg, like in the car crash analogy. If he had a weaker 3X, with his below average 2X, he would lose velocity but if he had an explosive 2X like Justin Verlander, to go with his explosive 3X, then what would happen? This would change the car crash analogy. The brick wall would now be replaced with another car moving towards the original car at the same speed. Let’s replace these cars with bumper cars so the impact is greater. Now what would happen to the passenger in the original car? He would project himself even farther out of the car at impact. So you can see how powerful 3X and 2X can be if they work together. You can also see how if you increase one and decrease the other, at the same rate, then you haven’t effected velocity but if you increase one without decreasing the other then you increase velocity. 3X to 2X go hand in hand, so you must understand their relationship before you can effectively use them to increase velocity.

How to implement 2X before Pitch Release

The key to implementing 2X into your delivery is through both the motor coordination training of the component through drills and strength and conditioning. Let’s look at them separately.

Motor Training 2X – When using drills like the Med Ball or Target throws in the 3X Pitching Velocity program you want to work to keep the front leg knee behind your heal when in these drills. This will allow you to more easily achieve 2X. Once the front leg knee pushes out over the front foot it becomes too difficult to achieve 2X. These drills will help you develop the motor coordination around 2X because when you are in these drills, you are positioned with your hips open to the target at start. 2X will not occur if your hips are closed towards the target. This is why it is difficult to practice 2X within your entire pitching delivery. If you are not opening your hips at front foot strike then it will be almost impossible to achieve 2X before pitch release. This is why I recommend using the drills in the 3X Pitching Velocity Program to train this 2X motor skill.

Strength and Conditioning 2X – This is important to support 2X because for a pitcher to achieve 2X before pitch release, he must have strong quads and flexible hamstrings to complete this movement. If a pitcher is able to get the hips open at front foot strike but does not have the strength to fire the quads against the force of the landing leg hitting the ground and his hamstrings are not strong and flexible enough to support this extension and forward trunk tilt movement then the pitcher will never achieve this velocity component. The 3X Pitching Velocity program uses heavy load training to develop the quad power along with lifts like the RDL’s to develop the hamstring flexibility.

The Science behind 2X to 3X

If you need more science to support this information in this article then please study more about the physics of impulse and momentum. You can actually put together the math that supports this 3X to 2X relationship.

Here are also the studies that support these pitching components.

NPA Velocity Study conducted 2005-2006

http://www.nationalpitching.ne…..UV_NPA.pdf

“The results from our study indicate that just about 80% of a pitcher’s real velocity comes from the torque of hip and shoulder
separation”

ASMI – Comparison of High Velocity and Low Velocity Pitch Deliveries

http://www.asmi.org/asmiweb/re…..itches.htm

“Compared to the low ball velocity group, the higher ball velocity pitchers demonstrated less lead knee flexion velocity after front foot contact and greater lead knee extension velocity at the time of ball release. Extending the lead knee in this manner may provide stabilization allowing better energy transfer from the trunk to the throwing arm, and could be a critical factor in pitch velocity.

More open pelvis angle at the time of ball release (REL) also correlated with increased pitch velocity increased.”

How the Brain Works During Game Time

Before we go into these 3X Pitching mechanics triggers let’s take a look at how our brain works best during game time. During game time the brain is overwhelmed with responsibility from keeping track of the count to holding runners on base. Overloading the brain with a ton of mechanic positions and adjustments can be detrimental to a pitchers performance. The key is to keep the amount of information the brain has to process to a minimum. This is why a good pre-game routine to help reduce this stress is so important. This article does not cover a full pre-game routine but it will support it with some key 3X Pitching mechanics triggers to simplify the process of keeping the pitchers mechanics on target during the game.

These 4 triggers listed below should be used within your inner dialog during game time. This means these are commands for your inner voice before every pitch. If you do not have an inner voice then just say these 3X pitching triggers out loud. Don’t worry, you will not be the first pitcher who likes to talk to himself!

4 Key 3X Pitching Triggers for Game Time

1. Knee to Hip – This is a great place to start. This simple trigger should tell your body to move your drive leg knee forward during your leg lift until it is in a linear position with your front hip. This will help you hit the perfect “Load” position with these simple words.
2. Accelerate – This will immediately follow the first trigger and it should tell your body to start moving and work to hit your peak speed before front foot strike. This will support triple extension before front foot strike along with building optimal stride power.
3. Separate – This will follow the previous trigger and notice that these last three triggers rhythm which makes it easy to say them quickly because you will also be moving through these triggers and mechanics very quickly. When you say separate, you are telling your body at front foot strike to feel your hips slam open, as it separates your hips from shoulders, building optimal core torque.
4. Pronate – Moving into this trigger from the last skips some important components, the reason we skip them is because they happen so quickly that you will not be able to influence them during game time as easily as the 4 triggers here. If you can focus on separation into pronation, then there is a good chance that you have implemented the components in between correctly and are reaching your top velocity. I believe good pronation of the throwing arm at release will only occur if you have good external rotation and forward trunk tilt which are the critical components that occur between this trigger and the last one.

If these 4 3X Pitching Triggers for game time do not work for you then make sure that you keep your triggers simple. The goal here is to help your body mechanically at game time without overloading itself with too much information for it to process under stress.

All of these 3X Pitching Triggers come from the 3X Pitching Velocity program. It is a requirement to have completed this program before these trigger will work for you. I would bet you your money back that if you complete the 16 week 3X Pitching Velocity program that these pitching triggers will be the key to your success this season. Best of luck!

If we compared the pitching delivery of a power pitcher to a high powered riffle then the force vector would be the barrel and triple extension would be the trigger. Without either one, your high powered riffle is junk. It also doesn’t matter how much gun powder is in the gun, without the barrel or the trigger, it is useless.

Most young pitchers have very poor stride power because they do not achieve triple extension in their strides. This component along with the gun powder, which is our muscles, produce power in our strides. Without this component and poor leg and core strength, our power production is limited.

What is the Force Vector?

This is the angle of the ankle to knee. Starting in the drive leg, this is the direction that force is being produce. If the ankle to knee is vertical then the force will be produced in a vertical direction. Because the stride moves in a linear direction, towards the target, a pitcher can not produce force or power in the stride until the force vector is linear. The force vector is also important in the landing leg. When the landing leg stabilizes and produces force back into the hips, the force vector must also be angled in a linear direction instead of a vertical direction.

Why is the Force Vector so important to increase velocity?

The National Pitching Association in their 2005-2006 Velocity Study here, proved that 80% of a pitchers velocity is based on the degrees of separation between the hips and shoulders at front foot strike. The 3X pitching approach has proven that triple extension before front foot strike, along with triple flexion of the landing leg at front foot strike, is what enhances this hip to shoulder separation. Therefore the force vector must be in a linear direction for triple extension to occur in the drive leg and optimal stabilization to occur in the landing leg.

How to Implement the Force Vector into the Pitching Delivery?

Most young pitchers struggle with this critical component. Their force vector stays too vertical through their strides. The reason for this is the lack of power and mobility. Power and mobility is pretty much a catch 22. You cannot have mobility without power but you can have power without mobility and to have a linear force vector in your drive leg during your stride, takes both power and mobility to implement.

The best way to improving your force vector you must first start with building a base level of strength through the entire body and then start enhancing power production by introducing speed and power movements. Once you have developed some explosive power which can be measured in a vertical jump then you want to start training this power through full range of motion to enhance mobility. This must be done with both a throwing program and a strength and conditioning program. This is the foundation of the 3X Pitching Velocity program. This is why this off-season program is so effective in increasing velocity. If you are serious about your pitching career and you want to develop an explosive stride to help increase velocity and prevent arm injury then you must start this 16 week program today.

For more information of the 3X Pitching Velocity program continue visit the home page.

FVS Velocity Program for Position Players

The key for position players to increase velocity comes in these four components; Force Production, the Force Vector, Front Leg Stabilization and Hip to Shoulder Separation. If a position player wants to increase velocity, he must enhance Force Production, focus his Force Vector towards his target, Stabilize his front leg at front foot strike and convert this force or power into hip to shoulder separation. If you are new to this site then this may be the first time you have read these terms when describing the throwing motion. Here are some simple definitions of these components to help you understand this approach.

Force Production – This is the force applied in the throwing delivery either through the drive steps or step, before front foot strike. In the last drive step force production is enhanced through the ankle kick of the drive leg. This will start force production at the foot where the body is in contact with the ground and this ground reaction force will move up the leg, into the hips, to create hip rotation.

Force Vector – This is the direction of the ground reaction forces. The force vector is the angle of the drive leg ankle to knee. The ankle to knee or force vector must be in line towards the goal or target.

Front Leg Stabilization – The front leg must also produce force which comes at front foot strike. When the front foot lands, this force moves into the ground and where there is an action there is an equal and opposite reaction which is that force moving back up the leg. If the leg continues to stabilize, this force will travel into the hip, to assist in creating hip rotation.

Hip to Shoulder Separation – This is the most critical component of all throwing deliveries. All the other components are used to serve this main component. Enhancing hip to shoulder separation at front foot strike is the key to reaching your top velocity from any position. This component describes the separation of the back hip to back shoulder at front foot strike. The more hip to shoulder separation the more coil or torque in the core which will create more velocity while reducing the stress on the arm.

The difference between the FVS throwing motion and that of the 3X Pitching throwing motion is how force production is generated. In the FVS throwing motion, force production is a product of the few drives or momentum in the body during the movement towards the ball. This is because most throws from positions start with body movement and in the pitching delivery, the pitcher must always start in a static position.

The similarities of the FVS throwing motion and the 3X pitching throwing motion is everything after force production. Speed and power is still just as important to generating velocity, in both throwing motions. The more powerful athletes in the field will also be the harder throwers, if their mechanics are using their full power, like here in the FVS approach.

The Problems with Changing your Arm Path

If you define the pitching delivery in the two phases as labeled here in this article called, How to Throw Hard and even Harder, you will learn that when the arm is starting to apply the force to the ball which happens after external rotation of the throwing arm, the arm path is moving in a straight line towards the target. This means that when conventional wisdom says you should have a short arm path in the beginning of the delivery and a long arm path at the end, this changing of the arm path actually has no effect on the velocity of the ball. What this is doing is making a mechanical change to your delivery which is the why your velocity is changing.

If you look in Professional Baseball you find all different styles of arm path and no relationship with velocity. This is because velocity is based around stride speed or power and the relationship between the rotational pivots which are the hips and shoulders. Being that the arm is connected to the shoulders, it does have some control of the shoulder pivot but ultimately the shoulders are in control. Based on the 3X Mechanics velocity is mainly influenced by the relationship of the hips to shoulders at front foot strike. The arm path can go almost anywhere it wants, as long as the shoulders are closed while the hips are open at front foot strike. You could pitch like Tim Lincecum and put the arm down behind your back during your stride, or like Zach Outman who looks like he is stretching his throwing arm while he is striding, either arm path will have an effect on velocity if their other mechanics do not change.

The lesson learned here is never focus on arm path, it does not control the legs, core or shoulders and it will more than likely have a negative effect on your pitching velocity. If you want to learn good mechanics to increase pitching velocity then stay away from conventional wisdom and learn to implement the 3X mechanics which you can see here in this pitching 101 video.

There currently is a gimmick that supposedly helps the pitcher to get into this position but the problem with these gimmicks is if you cannot pitch with this device in a game, what use does it have for the pitcher? If the pitcher can not put himself into this power drive position without the device then it is a total waste of money. I have never worked with the device, so this is not a review.

The 3X Pitching Velocity Program trains the pitcher through drills to achieve this Power Drive Position. I will cover some of these components here that are in full detail in the 3X Pitching Velocity Program.

The Pitchers Power Drive Components

1. Lift and Lead – Lift your lift leg as you lead with your hips. You want to start your momentum towards your front foot as quickly as possible while closing off your hips with your lift leg.
2. Align your Force Vector with your Front Hip – Your force vector is your ankle to knee. This must get in line with your front hip as soon as possible. You can make this happen by driving your shin into the ground as you push your hips towards the target.
3. Power Pads Force Production – You want your drive leg foot completely flush against the rubber with your weight sitting on your power pads. This is the area from the ball of the foot towards the arc. This is where you want to start applying force as you align your force vector with your front hip and as you move into triple extension. This is where you use ground reaction forces to generate your power.

This is definitely not an approach to pitching from the conventional wisdom of the game. Critiques of this approach would say that this goes against the old school “Balance Position.” Those who think this way do not have a physiological understanding of explosive movements. Lifting the leg and pausing to establish “Balance,” does not support an explosive movement by definition. To the explosive athlete “Balance” is the athletes ability to control the momentum of the body and direct it towards the goal. This balance is most important during the stride when power is generated and at front foot strike when power is converted to torque.

Great examples of pitchers who put themselves into a Power Drive Position would be all hard throwers. My favorite example is Trevor Bauer, Tim Lincecum, Aroldis Chapman, Felix Hernandez, Nolan Ryan, etc.

Learn the Pitchers Power Drive

To learn more about all of these power pitching components read more articles here or purchase the 3X Pitching Velocity Program.

What is the best way to use the glove side to increase shoulder and pitch speed?

Before I go into answering this question please understand that there is several critical mechanical components that occur before the glove side even comes into play during the pitching delivery. It is essential when learning velocity focused pitching mechanics that you master all of these critical components before front foot strike which is when the glove side takes action. You can learn all of these mechanical components in the 3X Pitching Velocity Program.

When the glove side is ready to serve its purpose, it must immediately spring into action and become an effective fulcrum for the shoulders to launch. This means it must tuck tightly under the glove arm and shoulder. The tuck should be enough for the chest to push forward while the glove arm bicep is fully contracted like when curling weight. Do not let the glove drop or the elbow to swing out towards the dugout. The elbow must stick into the obliques of the core. By tucking the glove side up and under the arm and keeping it tight with the chest pushing forward this will set a strong fulcrum for the shoulders to efficiently accelerate around. Remember the purpose of the tuck is to create a stable fulcrum or pivot, NOT to assist the throwing arm during the launch. Using the glove side to assist the throwing arm during the throw will cause instability in the pivot point, slowing down the speed of the shoulders and could also cause arm drag which can lead to elbow and shoulder injury.

The best way to learn the glove side is to watch the glove side of hard throwers in slow motion.

Dallas Baseball Instruction

If you are looking for instruction in the Dallas area then checkout Coach Pourciau’s video analysis which also comes with his One on One email coaching. His instruction is some of the best you will find. He has worked with hundreds of successful baseball players in all levels of play.

Dallas Baseball Training Programs

If you are a position player looking to gain sprinting and bat speed then the Baseball Training Manual is what you need. It comes with a free stream to the instructional videos for you to learn all of the drills, exercises and lifts. Coach Pourciau is also available to do video analysis for your lifting mechanics. For more information contact Coach above.

If you are a pitcher and looking to add 5-10mph to your velocity then you must start the revolutionary 3X Pitching Velocity Program today. It is a 16 week program which comes with the 3X Velocity System of med throws and target throws along with the Fusion system which is a complete strength and conditioning program.

Dallas Baseball USSSA Travel Teams

If you are a travel team looking for a training program for your position players or pitchers then contact Coach Pourciau and he will customize your program to meet your needs. 985-377-9249

Dallas Baseball Video Analysis (Pitchers)

Here are some of the top Pitching Velocity Programs online. These programs and baseball training videos have produced some serious results in increasing velocity, preventing injury, improving longevity, enhancing power production and helping those ball players get to the next level. A good place to start is with a Pitching Video Analysis so you can learn how the 3X programs will benefit you.

All these programs or in a digital format. If you would like these digital programs gift rapped and shipped then add the 3X Digital Cube to your cart along with your programs and the digital programs will be uploaded to the USB flash drive, gift rapped and shipped to the address you specify in the gift shipping section at checkout.

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Dallas Baseball Training Program (All Position Players Ages 14U)

Here are some of the top Pitching Velocity Programs online. These programs and baseball training videos have produced some serious results in increasing velocity, preventing injury, improving longevity, enhancing power production and helping those ball players get to the next level. A good place to start is with a Pitching Video Analysis so you can learn how the 3X programs will benefit you.

All these programs or in a digital format. If you would like these digital programs gift rapped and shipped then add the 3X Digital Cube to your cart along with your programs and the digital programs will be uploaded to the USB flash drive, gift rapped and shipped to the address you specify in the gift shipping section at checkout.

Dallas Pitcher’s Velocity Program (Ages 8U)

Here are some of the top Pitching Velocity Programs online. These programs and baseball training videos have produced some serious results in increasing velocity, preventing injury, improving longevity, enhancing power production and helping those ball players get to the next level. A good place to start is with a Pitching Video Analysis so you can learn how the 3X programs will benefit you.

All these programs or in a digital format. If you would like these digital programs gift rapped and shipped then add the 3X Digital Cube to your cart along with your programs and the digital programs will be uploaded to the USB flash drive, gift rapped and shipped to the address you specify in the gift shipping section at checkout.

Serving Areas: Addison, Mesquite, Farmers, Richardson, Lancaster, Irving, Martin’s Mill, Sunnyvale, Garland, Hutchins, Balch Springs, Plano, Carrollton, DeSoto, Duncanville, Wilmer, Red Oak, Rowlett, Grand Prairie

Before I give you these keys you need to prepare your mind for success because these keys will change how you look at pitching and velocity. More than likely the knowledge you have of pitching velocity is not getting the job done and YES you can gain knowledge from a source like TopVelocity.net which will guide you to pitching velocity that you have dreamed of reaching. Obviously, I am proud of these 3 Keys to Pitching Velocity because I am gloating but I did have to pay a heavy price for this knowledge. I had to overcome a career ending rotator cuff tear before playing pro ball, along with over ten years of searching and searching for this knowledge and abusing my body through trial and error. These 3 Keys helped me to reach my velocity goals after several doctors told me I would never pitch again. So here goes!

The 3 Keys to Pitching Velocity

1. Triple Extension
2. Optimal Hip to Shoulder Separation
3. 180 degrees of External Rotation

That is it! This list is the Holy Grail to Pitching Velocity and you now have it. I am sure you have no idea what you have, so I will take the rest of this article to explain what each one of these keys mean to you.

Triple Extension

This is the foundation of my 3X program which is apart of the Ace Pitcher Handbook and the 3X Velocity Camp Instruction Videos. Triple Extension is defined as the extension of the ankle joint, the knee joint and the hip flexor. This is the first phase of generating velocity. If performed effectively this key will increase velocity by 4-5 mph. To be performed effectively it must occur JUST BEFORE FRONT FOOT STRIKE. This is when the lift leg lands and opens to the target. If Triple Extension does not occur JUST BEFORE FRONT FOOT STRIKE then it will have a limited effect on velocity. To learn more read the article here at TopVelocity.net on 3X Pitching.

Optimal Hip to Shoulder Separation

This key to Pitching Velocity is the hardest to learn out of all the keys. It is also what separates high velocity throwers from low velocity throwers. The reason for its difficulty is that your lower half must separate from your upper half and most young pitchers do not have this coordination. Try it the next time you are throwing and you will feel how awkward it is when you first experiment with it. You can perform this component by driving your drive leg forward and at the same time cocking your throwing arm back. What this key does is build what I call core torque. Putting majority torque in your core will not only allow you to generate more velocity, it will protect your arm from injury. It will protect your arm because when you build more core torque you have a better chance of not abducting your arm into the red zone. It will generate more velocity because you are now using a big explosive muscle group to assist momentum. To learn more about this key and how to implement it into your delivery I recommend the Ace Pitcher Handbook.

180 degrees of External Rotation

This key only comes when you have mastered the two keys before this. This key component should not be implemented or worked on until you have mastered the two keys before this one. The day you are able to externally rotate your arm to 180 degrees after building optimal hip to shoulder separation, you will experience a mental high that you have never felt before. The day that ball rips out of your fingers at 90 or 95 plus, you will not look back. This key will also only occur when your arm is completely relaxed to allow these eccentric forces to take control of the ball. This is the point in the delivery that Nolan Ryan would say he would then just let it ride. No pulling the ball down to finish the pitch, only tucking your chin and thrusting your chest forward while relaxing your arm and letting your arm externally rotate. Once your arm is stretched out then all you need to do is let it fire by allowing it to internally rotate to release as quick as possible.

Like I said before this may not make much since to the pitcher who has been brain washed by conventional wisdom. So do yourself a favor if you are that guy and watch the Matrix. Yes, watch the movie the Matrix and then stop listening to the same old stuff that everyone is telling you and has been telling you on the ball field and cut through the BS. Velocity is the product of an explosive kinetic chain of events that move through the entire body and transfer efficiently and effectively into the ball. For a pitcher to reach velocities as high as 90 or 100 mph he must fire and stretch his muscles and skeletal structure to its limits without causing injury over time. If you are to reach these velocities you must push yourself to these limits and train your body to max out its potential by using everything that it has in its power. You can rely on luck or you can get down to business and learn how to implement these 3 keys of pitching velocity into your mechanics and training.

3X Timing Factor

The component before 3X occurs is the “Load” position. This is when your lift leg is coming down and your squatting on your drive leg as your hips begin to build momentum towards the target. The speed of your lower body at this position is moving at a slow pace. You are mainly working to get everything in position for triple extension. Most pitchers who do not understand the timing of triple extension would try to triple extend quickly while still in the “Load” position. This would prevent good hip to shoulder separation at front foot strike and the pitcher would leap towards his front foot landing instead of hover. To prevent premature triple extension, you must wait for your hips to be as far away from the rubber as possible with you drive leg still bent and ready to fire and your lift leg is just about to land. Notice the photo of Joba Chamberlain in this position. Now that you know when to fire your drive leg into 3X you must now understand the speed of the movement.

Remember momentum must continue to accelerate to ball release. Therefore if you accelerate two early in your delivery it will cause you to decelerate before ball release. You want the climax of your speed to hit when the ball is launching out of your hand. As for the speed of triple extension, you must start your leg drive after the “Load” position at a slow pace to make sure your drive leg and hip are moving before your back shoulder. Once you feel the separation of back hip to back shoulder begin and your core is starting to tighten then this is when you explode into full triple extension. If you do not feel the separation of hips to shoulders before you triple extend then you could easily triple extend your drive leg and your back shoulder would move along with it killing your chance of creating optimal separation. So once you feel your core tightening then it is time to fire that drive leg and push your hips to your target. Notice in the video clip of Joba here he does not accelerate his lower half and triple extend until he is coming out of the load position and his lift leg is starting to open and land. You will notice that it looks like his knee is driving down into the ground. This is the effect of the extension of the drive leg as the body is moving down hill.

Another indicator that you created good core torque is if you can hear your drive foot dragging before your shoulders and chest start towards the target. This dragging sound should happen just as your chest is thrusting forward. Notice in the video clip of Joba that his shoulders begin following the hips towards the target just after his drive foot is dragging. Most young pitchers will see in video analysis that their drive foot drag happens after their shoulders commit towards the target.