[Daryl]

Daryl, You bolded #4 - I assume for emphasis?
Let's see if I am following your thinking.
The left hand remains perpendicular to it associated hinge plane therefore it will roll on the swing plane for horizontal hinging, remain perpendicular to the plane for angled hinge etc. ? The right wrist does not roll but pp#3, which is only monitoring for a swing with horizontal hinging will have the feel of continuing to rotate to the rear of the shaft all the way down plane and will arive at the rear at low point.
Does this sound like the same page U are on?

For the Hit-nothing rolls and pp#3 is stationary?

HB

With Angled and Horizontal Hinge Actions the Primary Lever Turns and Rolls, which is the Plane of the Wrist Cock. At Release, the Back of the Left Hand Faces outward toward the Plane Line and as it Rolls it Faces the Target. I'm only stating that the Plane of the Left Wrist Cock moves from Parallel to the Plane Line to Perpendicular to the Plane Line.

The Right Forearm Plane does not Rotate because its aligned and remains on the Swing Plane. The Right Wrist Does not Roll. The Right Wrist is not Vertical at Impact because the Flying Wedges are aligned at 90 degrees (Optimally).

Also, can you grasp this? In the Release Swivel, Only the Left Hand Swivels, the Right Hand does not. Both Hands Swivel during the Finish Swivel.

You need the Bucket Drill. You'll see the Alignment and understand the beauty of the RFAA.