He does achieve triple extension and it is explosive. You are right though his hip to shoulder separation is below average but he does something that most pitchers his size can not do and it is the reason for his velocity. Watch the video to learn more. You definitely will learn something very important from his delivery.

I put together this video because I have received a lot of questions about his mechanics. I hope this clarifies everything!

Skip,

I wouldn't say "minimal separation maximizes …. velocity" but I would be interested in your analysis. Please post a link here so we can check it out!

Skip,

I don't get how your 15 years of experience analyzing elite pitchers brought you to this perspective that the pitching delivery is best defined as a knee jerk reflex. When I think of elite pitchers I think of ballistics, a catapult system, a bow and arrow, even a car crash but not a knee jerk reflex which has nothing to do with launching or throwing an object. Could you fill us in on how you came to this understanding?

I also do not understand what Zedoryu pointed out, when you said, "How their strides become a reflex reaction to their Glove Side activity." This would mean the pitcher is throwing backwards in my head because the stride comes before the glove side tucks not after. Could you clarify this?

I do agree with you that the glove side has a lot to do with your command but it isn't the only factor in precision. The front leg is another major factor. In this article on Pitching Speed and the Glove I talk about how the glove side is a reaction to the stride and works as a fulcrum for the shoulders to rotate around.

I feel that your perspective of the pitching delivery is not completely accurate because in your analysis you are looking at still frames which doesn't give you the total understanding of movement. Why do you chose to use still frames for analysis and not an animated clip of several frames at a time?