[comdpa]

Geometrically, there is only one way:

First, position the Right Forearm parallel to the Plane Line. Then, use Push Basic Stroke -- keeping the Hands between the Right Elbow and the Ball -- to move it precisely along the line that it is positioned. The Right Shoulder will remain motionless; Hinge Action will automatially be Vertical Only; and there will be Zero Shift from the Left Shoulder Plane.

Players wishing to use Angled Hinging and the Elbow Plane need only position the Right Forearm to point at the Plane Line (and not parallel to it). Then, use Push Basic Stroke to Drive the Right Forearm along the line it is positioned, i.e., toward the Plane Line. Ergo...automatic Angled Hinging on the Elbow Plane.

And with this Customized Pattern, the Putting Arc works.

Yoda,

Would not the 2 procedures outlined above, i.e, Right Forearm pointing at the Plane Line and parallel to the Plane Line, be dependent on the length and lie of the putter - IF the right forearm is to be inline with the shaft and the right elbow is to be in an "up and out" position per 10-3-C?