Sorry for misleading. The Hinging, Swivel, Downstroke acceleration Sequence, Pulley and the Straight line Delivery Path of the Endless Belt, I'll address only regarding Right Forearm Participation. I didn't mean to say that the Right Forearm controls all of those issues. I only mean to say that the Right Forearm participates in each of them.
Left Hand = Clubface
#3 PP = Clubhead
Right Forearm = Clubshaft