[O.B.Left]

K couple of things come to mind. Re left arm only motion : I asked Lynn if for a left arm , Pull Minor Basic Stroke one should still employ a Right ARm takeaway . Answer YES! Also note that for all but the Pull Minor Basic strokes the left arm muscles themselves do not pull anything , as the left arm is for those shots said to be Inert. Inert means inert . Funny story here . Lynn once when discussing a similar point with Homer asked if any muscular effort could be involved given an inert right arm. Answer: "Now what dont you understand about "inert"! Anywhoo , your Left Arm only drill is ok but make sure you dont ingrain a left arm push away or a left arm pull for anything longer than a Minor Basic Stroke.

Re the Right Arm only. Fine . Tiger chips and putts likes this.

Re both arms , re a right arm consciousness vs a left . The left sided perception is the flail : uncocking and rolling down the line with the clubhead passing the hands. The right sided perception is the angled Right Forearm flying wedge staying intact , with a frozen ish right hand through the ball . THESE PERCEPTIONS CO EXIST IN THE TWO ARMED SWING. THEY ARE NOT MUTUALLY EXCLUSIVE , strangely. You will see this if you imagine the plane of the two wedges as say 90 degrees to one another and them both rolling through the ball . Not a swivelling of the forearms or anything .. no! Its a rolling of the entire Primary Lever (Left arm and club) with the Right Forearm FLying Wedge rolling with along with it . A hinge action is not a hands manipulated thing, even though its defined by the left hands relationship to one of the three basic planes. AH Homer what did you do to my brain!!! Im talking like a mad man.

Now Daryl will jump in ...