I suggest -
When the idea of "improving" or "correcting" my shooting surfaces, I should focus on the END RESULT, not on which joint of the trigger finger to use or where to put my feet or how much to distribute the percentage of grip power between the trigger hand and support hand.
Clearly and historically, there have been gazillions of pistoleros who use this technique or that technique, often in direct opposition. But in the end, they all put holes in the black circle downrange.
Just as we shouldn't assume that "If I get grips like Bill Jordan, I'll shoot like Bill Jordan", we shouldn't assume that "Elmer used this portion of his trigger finger so if I use the same portion of my trigger finger, I'll shoot like Elmer".
Focus on what needs to happen and why it's not happening. That's what coaches, in any event, do. No coach in the world, at least no good or honest coach, says, sight unseen "You must grip your ball/club/pistol/bar with your thumb here and your finger there". The good and honest coach WATCHES and evaluates the athlete and only then SUGGESTS something like "You're throwing the ball low and to the right - that MIGHT be caused by not releasing the ball early enough". Then we'd experiment with that and if it seems to be true for this individual athlete, we can experiment to see exactly HOW to affect that release timing. It may be with a modified grip. It may be any of a number of other things like stance, angle of the joints, target focus etc.
Don't get locked into any ONE idea that "My thumb has to be here in order to shoot well". Figure out where and most importantly WHY your thumb has to be anywhere at all.
My hands, your hands and Bill Jordan's hands, as well as arms/legs/retinas/centers of gravity are all different.
Put holes in the black circle.
Sgt Lumpy
