OK this might start off as a mind-vomit of sorts but will hopefully collect into a useful topic of discussion.
Through a lot (LOT!!!) of reading, watching and absorbing golf swings, theories, tips and instruction I've always thought that the primary pressure points for the hands are the pinky, ring and middle finger of the top hand and the ring and middle finger of the bottom hand so I've pretty much ignored the other fingers as "surplus to requirements"
A couple of weeks ago I did a little work in a lesson hitting against an old tire and noticed a pronounced load of extra pressure on PP3 (lower hand index finger against the club) at impact and decided to try and retain that pressure throughout the swing. At first the pressure felt like it was non-existent at address and all the way to the top of the backswing, then piled on and disappeared again just after the transition; as if the club had 'bounced' off the pressure point and the club had then fired ahead of the hands.
In order to try and get the feeling back I started putting the club head down on the ground and pressing down/forward with PP3 a couple of times at address to remind me of the feeling and after a few range sessions it feels like I'm retaining that pressure for much longer now. It also feels like my hands are staying ahead of the club but trailing the body and my contact and compression are massively increased and also it seems to me that I can feel the angle of the club face better than I could before as I'm able to direct the ball much better than before.
Now the question is should I be using this feeling and ignoring the "fundamental" pressure points in paragraph two above as they're already ingrained? Are there negatives to doing this or is this new feeling just normal service when ball striking improves?