DDR, I think the best way to try and heal the sites is to simply stop inserting there. Easier said than done, right

? Have you ever tried your upper abdomen, arms, or hips? If you use an angled set you might be able to get away with using your thighs, although if you can't pinch an inch it's probably best not to.
Don's idea of inserting on your side of your waist sounds good too. Maybe some more male perspectives on sites would be helpful here?
Good luck!
Shy