woo hoo TrickG ---- Dude, your getting older --- everything is changing. YOUR jaw actually shrinks when you get older, and your gums recede --- so I suppose you did NOT factor this into your equation. Let's see, by now (excluding your small tour into percussion land) - you have also learned how to relax, to develop better mechanics than when you were younger. I think your teeth (as long as you have them) have little to do with your playing, they only mess with your imagination.
BUT HEY --we all look for reasons why we can play better.