[Jeff]

Neil - I agree that one transfers weight to the lead foot as soon as one starts a stone skipping action. In other words, the mere intent to throw the stone causes the lower body to react near-instantaneously so that the movement of the right upper body throwing unit (right arm flying wedge) occurs synchronously with the shift-rotation of the pelvis. That's the perspective of Peter Croker in his swing ideology. One focuses one's mind consciously on throwing the club from the top, but the "true" reality is that a number of body actions occur simultaneously at the very start of the downswing - the right shoulder moves downplane + right elbow moves towards the right hip + right arm flying wedge remains intact/unchanged (thereby keeping the distance between the hands and the right shoulder unchanged in the early downswing) + pelvis shift-rotates to the left. All these body actions occur simultaneously/synchronously.

Jeff.