Yeah, I'd just be guessing what to do for that. However I still will say that more padding has never helped my hands or butt when doing long rides. For rides of a hour or so, sure it does to some extent.

You might need to investigate if a good Physical Therapist that is certified might be of some help. Maybe they could suggest other ways to position your hand on the bars. If that PT is a cyclist, then that might be better.

I hazard to suggest a bike fitter, as many only know how to measure you and work formulas to put you in a certain position. Or video you and do the same. I don't have much faith in that for helping anyone that isn't the average model their formulas are based on. Some few fitters have a innate sense of how and what affects the skeleton, joints and muscle. If you are lucky enough to find one.

One other thing that has helped me keep pressure off of my hands and wrist has been working out when off the bike. Doing exercises that strengthen my glutes and lower back as well as exercise for my shoulders and upper arms.