[Daryl]

Homer selected to use a Zero Shift on the Turned Shoulder Plane.

First, why did he choose to do this?

I could go on forever, but here are a few thoughts.....There are dozens more.

Because in a Hands Controlled Pivot, the #3 Pressure Point is Aimed Directly at the Ball or Aiming Point. It's a Straight Line Thrust, Un-wavering Lag Pressure, from the Top to Release. It's the Only Way that the #3 Pressure Point can Trace a Straight Plane Line from the Top to the Finish Swivel and direct the Power Package to the perfect Release Point. Because doing so is the Only Way for the Hands to Control what the Pivot should do. The Pivot Can't comply with a Plane Shift: the Pivot will take over the Hands.

If the Hands and Club Shift to a second plane, such as the Elbow Plane, all of the Pressure Points get jumbled up. Meaning that they Radically change Pressures during the Shift. That's a no-no. Get a very Tight Grip. That's why you see Golfers like Sergio, at the Top, prepare, by, at Startdown, Drop the Clubshaft to an Elbow Plane Angle BEFORE their hands start Down.

The Rigid Power Package can SERVE only one Plane Angle per Swing. If you Switch Planes then you must use a Non-Rigid Power Package. If you use a Non-Rigid Power Package by letting one or more components race ahead of another, then you will need to spend more money on Golf TIPS Magazines.

and Second:

Why in recent times do TGM trained instructors not select to teach and utilize this procedure more often? Usually we see most people with some shift, but why not work a student more towards a zero shift on the turned shoulder?

TGM Trained Instructors?

"Many are called, but few are chosen."