I think I know how you feel. I am in a similar situation of much less severity. A few months ago, I was having some discomfort from carrying my Improved Model 56 (2" Model 15), even though I was using a good belt and holster, and I knew that it would go away if I carried a Model 12 for a few days or so.

I haven't gotten around to changing back yet, even though I know that the 15 is a much better gun in my hands.

And I'm only 72.