Outside Pitch Mechanics
Yes,top arm near extension,but hands/handpath not getting away from center of rotation before contact.Extension occurs by bat/sweetspot swinging out which triggers energy transfer or "momentum runaway" from energized torso to center of mass of bat (like weight on end of string).Extension does not occur by handpath getting away from axis of rotation(going linear/extension of handpath)since this shuts off energy transfer as demonstrated in Jack's steering wheel knob demo.
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