Hinge Action NOT in Zone #3 (!?)

[tongzilla]

We all know Hinge Action (2-G, 7-10, 10-10) is about controlling your Flat Left Wrist (although actual hinge is located on Left Shoulder) during Impact Interval. Hinge Action controls Clubface motion which is what Ball Control is about.

Therefore, its home on the Three Lane Freeway is Zone #3 (9-3). That's the Hands Lane and "includes all elements of Ball Control" according to Homer.

So WHY did Homer remove Hinge Action from Zone #3 and replace it in Zone #2 (Arms, Power, Force, Club control) in the 7th edition?

Let the discussion begin!