Some say that the Limbsavers smear when put on a sander, where the Decelerator grind down 'nicer'. I have not tried grinding a Limbsaver, but I have one now to fit to a MPI fiberglass stock, so I should find out for myself this weekend. The freezer idea sounds good, I may try that. I don't have access to liquid nitrogen, though. I doubt that many do.....
The answer to your question is, very few will bolt right on. No two stocks are exactly the same dimension for the buttstock. I assume that the slight differences are a result of finish sanding of the wood stocks. I have tried 3 'precision-fit' Limbsaver pads and none of them fit perfectly. Measure your buttstock with the original pad removed. You can compare your measurements to the measurements provided on the replacement recoil pad packaging.
Limbsaver pads are a terrific product. They do add considerable LOP, as the pads are ~ 1" thick.