I think I get it now. Getting to the position with the rear foot more towards third sets the proper angle 45 of the body to be maintained. This allows a player not to have to prematurally or over rotate open which would throw off posture. Throwing off posture and the body angle takes away the ability to brush etc. This is often seen when a player has to stick their butt out etc.
By golly I think he’s got it.
You got it. Have to start right to finish right. HE pitchers are taught to get open. Sideways. Then close. Too much can go wrong with the timing of that. Why not just stay at 45. Allow upper to open and close naturally which creates momentum.
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