[dlam]

Lately, I been using the "dangling" left forefinger for the full swing and I been compressing the ball solidly. I don't need to feel the first metacarpalphangeal joint of my index finger on the grip.
In fact I think having it off makes it less restrictive for the left forearm to rotate and makes horizontal hinging much easier.

Odd isn't it that the mirror image of that joint in the right hand is PP3

Strange too is that when I take my grip I am specific in my hands where not to grip as well as which specifc points to grip.

In my swing,Which areas in the hand not to grip seems to be as important or even more important than the PP.