[Loren]

What's missing thus far is Impact Fix.

For ndwolfe who is not TGM conversant, Impact Fix is a dress rehearsal for Impact done between Preliminary Address where you're getting ready for the shot (club selection, wind analysis, trajectory, target, practice swing), and Address with its adjustments for where you intend to start up including any waggles and forward press, usually with hands mid-body.

Key to this discussion is the right forearm on-plane with the shaft at impact. That's where we intend to return everything at the moment of truth.

Impact Fix sees the body in relatively open conditions, although the hands are still mid-body as the mid-body has shifted from where it would be at standard Address, the head height is lower, the right shoulder is lower for impact, precise amount of impact knee bend determined and impact foot loading. The grip is taken here with the clubshaft at an angle according to its lie angle and built-in clubshaft forward lean, the clubface open, square or closed according to planned hinge action to be used, trajectory and length of shot, the left wrist flat, level and vertical, the right wrist bent, level and vertical and extensor action is applied. Thus, the Flying Wedges are assembled, which is Daryl's Power Package Structure. It is this structure we want to recreate into impact reqardless of plane angle shifts, and to where the right forearm must return. The Machine is designed to do precisely that. Think full-body participation Forward Press.

Depending on how far you stand from the ball, the amount of waist bend and knee bend, the degrees of openness of the hips and shoulders, acquired axis tilt and right shoulder height at impact, it's possible to have everything lined up with the turned shoulder plane and take it away and return it precisely there with zero plane shift. The right forearm can not get on plane until the elbow does, but that does not dictate swinging on an elbow plane. It's the hands that go up and down the plane on their delivery path, and the right forearm is thrown or driven out into impact.

Hitters especially prefer to use this position as Address for startup.
Swingers adjust back to mid-body address, squaring everything except the clubface, but it's advantageous to retain head height determined at Impact Fix, and right knee bend. The hands typically are lower but need not be, the left wrist has gone bent with the right wrist now flat. From there the Power Package has to be re-assembled in the backswing, but the swinger can drag it away from here better and the #3 pressure point is in a better location for tracing the plane line (proximal phalanx of the right index finger).
Either pattern uses Right Forearm Takeaway tracing the delivery line. Hitters carry it away, swingers drag it away.

The impact fix amount of right wrist bend, and the flat left wrist will be correctly re-created with a swivel (turn) of the left wrist onto plane somewhere in the backswing with the swinger's standard wrist action. The Flying Wedges are thus assembled and it is that fixed amount of right wrist bend that should be maintained into the impact area.

Quickly posting without much editing, a memory dump, getting ready to duck the bullets, probably in re "everything lined up on the TSP".
Hope ndwolfe gets something out of it if he's still around after all this. And hope there's nothing too misleading in here for him. There are still a few terms needing definition, Level for instance, the Flying Wedges, hinge action, delivery line. How much precision do you want? All that's possible.