Don the drill from Tom house is very interesting, but remember that leadin with the hips start with a linear movement and not a rotational movement. I've seen pitchers do this drill starting with a rotational movement. J, look at the posts we posted in brad seferian's pitching analiysis. It talks about the leaning of the torso. You don't need to have long legs to be able to lead with your hips. Try the drill and just put your butt on the wall and put your leg as far out as possible while staying closed, force vector in line and having flexion in the drive leg. I tell you, you'll be able to do this. This is what everyone should be aiming for at the end of the drill. If you cannot do this in your delivery it's a power issue. It is correct to tell a pitcher to keep his front for for catching up with his hips because you want to stay closed for as long as possible. It dowsn't matter where the hip goes, but you should be trying to get to front foot strike as fast as possible with good mechanics. Read Brent's article on perfect pitching placement of front foot strike for more detail on the line thingo.