[brownman]

But, as I read what U say, U are saying it take 2 wedges because the left is turning and rolling.

I do no necessarily agree with your arguement, I am just point it out.

This is neither a question or problem for me because I am comfortable with the dynamics as understood.

I will put forward another arguement- that the use of left hand alone tends to bend the plane by throwing the clubhead around the left hand , bending the plane to close the clubface and use of the right arm only tends to throw the clubhead out to right field because there is no checkrein.

HB

HB,I do agree with you regarding the plane bend with the left alignment,IT HAS TO BEND ,but only in order to seek and satisfy acc#3 angle,if this plane bend -flex didnt occur,there would not be acc#3
It is satisfying radial alignments"clubface control"

As for the R/arm,imo opinion,it is forward and downplane to right arm straight using only forearm thrust with pp on base of hand,that one is the easy one...cheers