Having dealt with 'trigger finger' on my left thumb last year (had to play a couple of months in a splint), I can understand where both of you are coming from. All I can say at this point is, if you are having any joint pain and stiffness, if you haven't already tried it, look into turmeric capsules, preferably with the bromalain additive. My thumb would not move at all, then after a couple of months on this stuff, it is back to 100%. I've a guitarist friend recommended them to me. Without them, he can't raise his arm above his shoulders. On them, he has complete movement.

I was shocked how well they worked. You may have different issues, but if joint stiffness is a part of the problem, give these a whirl... they can't HURT, anyway! It's just a spice (the yellow one used in much Indian cuisine), but with many benefits.

Hope this helps.