Ross Apr 19, 2018
To make sure you understand my comment about the shoulders getting a head start (and not to confuse other students)… the shoulders getting a “head start” is on the takeaway (not the downswing). The downswing unwinds from ground up (not the shoulders moving first from the top of the backswing… if that is what you’re saying).
The shoulders start first on the takeaway to wind the back muscles from top down like a rubber band. Eventually, the shoulders will turn the hips a little on the backswing. This is also why at impact, the hips are slightly turned open. The shoulders have not quite realigned with the hips yet and everything is accelerating and still unwinding.