[O.B.Left]

OMG. Hopeless. Typical Club Pro.

Who you call'n Pro?

I know he double Shifts. From a Square Shoulder Plane - up and Back down to a Square shoulder Plane.

The Point I'm making is about the On-Plane Right Shoulder. It drives the Hands onto the same Plane as the Right Shoulder if the Power Package is allowed to drop from the shoulder sockets.

The Point I'm trying to make is that assuming he (his pressure points) are on a Square Shoulder Plane at Top the "shoulder sockets drop" thing you describe is a plane shift in the manner of 1-L-18. Its "The" Plane , The Inclined Plane but its Angle Shifts. Those "shoulder socket drop" hatched lines you draw are illustrative in a 1 D pen on paper sense but the truth is seen in 3d perspective with animation. This is Homers Inclined Plane and its angle changes. Dynamically and according to our own Pattern. You could do a unique animation for any golfer from Jim Furyk to Lee Trevino.

The Clubhead will follow also. So, all that one needs, to have all of the Power Package components on Plane, is "get the Right Shoulder On Plane and have the pivot force it Down-plane". Unbending the left arm before release wrecks the stroke by lowering the Hands to a shallower plane.

If you get the Power Package on the same plane as the Right Shoulder at Top you are on a TSP of one angle or another. The closer this particular angle that you have pre selected approximates the Elbow Plane the less the Plane Angle shift required to get the Power Package onto the Elbow Plane prior to Impact. The Canadian guy does this nicely with a rather steepish Elbow Plane Angle at Impact helping to lessen the Angle shift required. I agree that it does appear to be almost shiftless in the Downstroke.

You can not unbend the Right Elbow prior to Release. Why? Because unbending the Right Elbow is by definition its, #1's , Release.

Am I the Only guy in the world that gets this?

QUITE POSSIBLY. But then again, its is your theory after all.