i’ve only encountered the don’t move forward till you get the arm up one other time when i listened to the current pitching coach for the university of texas. he obviously has had sucess with what he is doing but the teach didn’t work for me.
all the video and pitching coaches that make sense to me teach leading with the hips and getting the hips closed. many on the forum talk about the horrors of counter-rotating but i think it is extremely difficult to counter-rotate too far.
i have contemplated posting the new thing i’m thinking about and working on so now is probably as good a time as any.
i think once you understand and master setting the back foot and getting the hips out in front and some tilt in the shoulders, the next thing i think you should look at is the path of the lead leg knee after it reaches it’s apex.
if you can coordinate the rolling down of the back knee during tilt and getting the hips out front with the eliptical rotation of the front knee back and toward the body (instead of fanning open by taking the front knee forward and away from the body), this puts the body in an extremely powerful position to throw the baseball.
this arc of the front knee is clockwise for righties and counter-clockwise for lefties. i need to make a brief video but hopefully the explaination makes some sense.
this action keeps you closed as you move down the hill, creates and maintains torque in the core of the body, and if you unwind from bottom to top, promotes hip/shoulder separation.
something to think about. the next thing i teach after this is getting the elbows in a strong position away from the body ready to throw.