The cool thing about this "top aiming point" thingie is that you can reach back with your right hand on any Plane Angle you like . . . If you are too flat reach a little higher . . . if you are too steep reach a little farther back. Then do it with hands together . . . then do it with a club.

Remember Mr. Kelley advised that at Address you ideally (particularly in Hitting) have your Right Forearm On Plane and in-line with the clubshaft . . . . To do that you gotta have your right arm BENT.

I think that the acceleration solely dependent on the drive of the Right Tricepts in Hitting requires a significant amount of structure. Whereas, Swinging you could probably get away without Extensor Action at address . . . maybe more a gentle stretch.

But maybe the Top aiming point thing based on where your right arm wants to go takes care of the extensor action without any conscious attempt to apply it.

Chris, watch the first of the Tomasello videos where he discusses the pivot, and in particular posture. Also remember that at any time, one end of the clubshaft is pointing to the plane line (which continues to infinity in each direction) or that the clubshaft is parallel to the plane line. You've seen Mike Weir take the club halfway back? You should do the same too. It works! Use a dowel to check that the armpit is over the knees which in turn are over the balls of the feet. It goes without saying that without the correct posture you'll find it very difficult to swing correctly.

Correction: If one end of the clubshaft is pointing at the plane line, it doesn't guarantee that the clubshaft is on plane. For example the clubshaft could be under-plane or over-plane and be pointing at the plane line, and obviously not "on plane". (This after reading an article on GolfBetterProductions.com)

Isn't it , by TGM definition, still "on plane" if one end of the clubshaft is pointing at the plane line?

I agree that that plane may not be the most effective for your purpose and that a different plane angle may be more advisable - but it is still technically "on plane".

If you read 1-L-11-6 in isolation you might think so: "The Clubshaft always points at the Plane Line except when they are parallel to each other."

However.. 2-F PLANE OF MOTION All the action of the Golf Club takes place on a flat, inflexible, Inclined Plane which extends well beyond the circumference of the stroke - in every direction. The full length of the Clubshaft remains unwavering on the face of this Inclined Plane - Waggle to Follow-through. Every other Component of the Stroke must be adjusted to comply with that requirement. (Bold by Weighshift)

..and it is the player's responsibility to make it so. There are an infinite number of possible planes but only one Inclined Plane for each stroke.

But what about plane shifts - they are common and well-defined within TGM orthodoxy. The plane angle varies but they always keep the same staright plane line.

Isn't the constancy of the same straight plane line the key thing ?

I am keen to understand this properly so please if anyone else can help - I would be most grateful. The point about an "inflexible" inclined plane is OK for zero shift patterns but needs to be further defined for those that shift planes - surely?

I think you're right about the straight plane line being the key thing, as it is one of the 3 imperatives. There's nothing wrong with the concept of the flat inflexible plane, in regards to plane shift. Let's say you have a shift from the elbow plane to the turned shoulder plane on the backswing. You haven't bent the flat inflexible inclined plane; there are, in fact, two: the flat inflexible elbow plane, and the flat inflexible turned shoulder plane. You simply moved from one to another. This is my understanding of the concept.

That is the way I see it too.

It is the Inclined Plane during impact that we are most concerned about.