Shucks, to be 29 again. I, too, am a big guy with small hands, and they're the weak link for me in a lot of activities, including archery. That said, I have to admit I had never heard of a finger stall and just now googled the term to get a picture. I am curious why you were using them as opposed to a glove (or tab). I was going to speculate that on release, the balance of tension in tendons and the stall is suddenly disturbed, but that would be the case with a glove, too. Are you wearing more than one stall? At any rate, I'd just go with what doesn't cause pain, as long as you shoot well.