How can one wedge Roll without the other doing same ? Wouldnt you have to reform your grip to pull that off. Go from 90 degrees say to more than 90 in terms of the relationship of the two wedge planes.
Assuming a two Vertical , palms facing each other grip type : I see the Hands as Turning (or being turned by Pivot ) on the Backswing , Rolling on the Downswing , the wedges doing same. 90 (or whatever you set at Fix) staying fairly constant.
Daryl's drill with the bucket indicates that straightening the right arm (if correctly aligned) can hinge the left arm (from the shoulder hinge point), the handle goes from parall to the plane line to perpendicular to the plane line.
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