[Matt]

"On-plane" - Except when it's parallel to the ground, whichever end of the clubshaft is nearest the ground should point at the plane line.

All this 'keep it parallel to the shaft plane' stuff is just plain nonsense. Think about that 'on-plane' definition I gave. Will that be satisfied if the club is parallel to and above or below the original shaft plane? No. It'll be pointing either inside or outside the plane line...off-plane.

You must disregard the shaft plane and instead focus on the sweetspot plane. It is drawn from the sweetspot of the club and up through the right forefinger (PP3). That is the true 'plane' that TGM describes. And remember - everything complies with the plane! All motion takes place on the face of the inclined plane.

The true TGM 'plane shift' idea centers around this. Several planes are available to the player - hands, elbow, turned shoulder, turning shoulder, and squared shoulder. I believe it is 10-6 in the book that shows these. Many people have the classic 'double shift' - they start on the elbow plane, shift to the turned shoulder plane on the backstroke, then shift back down to the elbow plane in the downstroke. The 'ideal' as shown in 12-1 and 12-2 is the zero shift on the turned shoulder plane. Just take it back and through on that plane. It's actually something I'm working on in my stroke right now - getting it to come down on that turned shoulder plane.