It seems to me that many of us who try to understand the biomechanics of the pitching motion get hung up every little movement. With the infinite number of physical and mechanical variations among pitchers it would seem to me that all that matters is that they land (at foot plant) in a good and powerful throwing position. What many call the power position.
I would think this is much the same with hitters. There is wide variation in starting hand position, triggers, leg lift etc, but all good hitteres tend to be in a good hitting position once their front foot is down and their hands are loaded.
Pitchers who land with the correct stride length, with their toe on their pitch line or pointed slightly in, with their head centered, with their shoulders closed and level and hips just begining to turn, their arm in the high cocked position with the ball pointed to ss or 3rd. Isn’t that what matters most? Doesn’t everything good and bad happen from that point foward?
If a pitcher breaks his hands early or late, is long or short on the back side, over rotates his shoulders etc. Does it really matter if he lands in a good strong throwing position?
One last question that I would like your thoughts on:
When a pitcher lands with his front foot should the throwing arm, with a 90 degre bend in it, be horizontal or vertical? What, if any is the added risk of injury in either of these positions?