I don't know about that. Just to pick one, this guy doesn't seem to be following your advice. He was a decent hitter in his day.A factor in the equation is a misunderstanding of how the rear leg is supposed to work. For a RH hitter, the rotational pressure at the rear foot is not rotate counter-clockwise, it's clockwise. They should feel pressure of their little toe against the outside of their shoe. Rotating the rear leg counter-clockwise puts the pivot point for pelvis rotation in the front hip socket. Clockwise rotation puts the pivot point in the rear hip, which is where it should be.