[Daryl]

D to answer your question and at the risk of being slightly off topic. I'd say, respectfully :

Lose the line and title defining the foot or stance line as it has no bearing on plane line considerations. Identify your Low Point line. Move the ball back progressively to highlight the associated progressive increase in Divergence. I'd also remove your title "the hook" it's really not a how to hit a hook thing but rather the inherent draw tendency associated with moving the ball back given grip rotation.

You've drawn the angle of approach this being a hitter question but Hitters do commonly use the Arc of Appraoch as well ..... So maybe for clarity sake you could draw and identify the Arc of approach and leave that 2-j-3 can of worms for another day. It got a whole different set of geometric considerations that is best left alone for these purposes. Including a cross line plane line. But that said the ground work you are doing here would describe it as well ........

Man imagine 7-2 and 2-J-3 explained with diagrams......that would some serious fog abatement.

I'll give it a try tonight and post the corrections. I like the ideas.