When speaking of plane in TGM, we are speaking of clubshaft. There are many plane options as you can see in the book.
So for zero shift - turned shoulder, the clubshaft will travel from startup to impact on a single plane on the TSP. Back, up, and in simultaneously.
One way of adjusting plane shifts is with the #3 accumulator angle, but it is only one way.
For any plane shift, the hitter or swinger will end up with the right forearm on plane through the release interval (pre and post impact), so impact fix would also have this condition. That is part of the magic of the right forearm. It is desirable to have the right forearm on plane at all times, but the key is the release interval.
Hybrid Mode
