I think the "squat" provides necessary travel (lateral slide) for golfers who do not maintain the base of spine pointing at or near the golf ball at setup and/or during the back swing. If TGM places our right forearm on plane at address, doesn't this automatically preset spine angle ("reverse K") enabling us to set the base of spine very close to where it needs to be at impact (whether or not we choose to locate our golf ball where our base of spine finds itself is another question). If the axis of rotation remains fixed on the backswing, then downplane movement of the right shoulder on downswing should simply displace the base of spine closer to the target (increased spine tilt, and at or ahead of our golf ball (good bye fat shots). This limited lateral (and primarily rotational)movement probably does not look like a squat.
I think the "squat" provides necessary travel (lateral slide) for golfers who do not maintain the base of spine pointing at or near the golf ball at setup and/or during the back swing. If TGM places our right forearm on plane at address, doesn't this automatically preset spine angle ("reverse K") enabling us to set the base of spine very close to where it needs to be at impact (whether or not we choose to locate our golf ball where our base of spine finds itself is another question). If the axis of rotation remains fixed on the backswing, then downplane movement of the right shoulder on downswing should simply displace the base of spine closer to the target (increased spine tilt, and at or ahead of our golf ball (good bye fat shots). This limited lateral (and primarily rotational)movement probably does not look like a squat.
That is a valid and astute observation regarding the rt forearm being on plane. The little squat move I have incorporated is mainly just to add some torque from the ground for more compression, help me get to my left side, and to add some athleticism to my swing. Tracing plane lines is obviously critical, but in my search for percision I felt like my swing had become too static. So Im trying maintain the percision while also getting my lower body more into the act....