I hope one day in the PGA there are two type of coaches geometry and physics coaches, each understands the others field so they inter grade and work together for the better of the game.
Bio . . . still trying to get my mind around this . . . what components are intrumental in achieving "better" physics? Is it all pivot? Where do the arms and the "accumulators" come in? Do you teach how the arms and wrists are to work as well? Or do they just respond to the pivot? Also certainly not implying this about you but . . . . how many self-described experts in biomechanics understand the ball flight laws? If they didn't . .. .would it make any difference in what they taught you?