[Yoda]

From reading TGM it appears that Homer promoted students to really explore a number of component variations for every stroke component, once you know the differences, it will improve your understanding of your basic stroke pattern variation....

DG

DG is exactly right.

As an example, Homer Kelley felt it was necessary to learn all three Hinge Actions in order to be able to differentiate them. However, he had 'no love' of Vertical Hinging because of its required deliberate mechanical manipulation. [Swinging automatically produces Horizontal Hinging and Hitting automatically produces Angled Hinging but neither automatically produces Vertical Hinging.]

Again, he was adamant that Vertical Hinging should be learned and even used in actual play during the learning process. But...once learned, he much preferred as a substitute Angled Hinging combined with a Hitting procedure on a steep Plane. This combination approaches Vertical Hinging but requires no deliberate manipulation of the Clubface.