Where is the weight when one is forward yet back if one is not shifting there weight across the pelvis to the lead leg? Does the weight ever get shifted across the pelvis at any time in the swing?
At launch since the rear leg/hip isn't compromised during the move out, what is its purpose at launch? Is there a drive into the front side?
I would say around 60/40 when fyb. The shift has pretty much been completed and from there its the contraction against the hips extending that completes the swing..
But some have shifted a little more forward before swinging.