Without a doubt I would have a gunsmith do the work, even though I have everything available to do it myself. I've put a few on years ago (when I was young and naive).
The limbsaver I put on the synthetic stock was a perfect fit. When I ordered the thumbhole from Midsouth, I told them to check and make sure it was a good fit. Apparently, they didn't take it out of the box. But, I have to applaud them for expediting the shipment. Bad as I hate to, guess I'll shoot without it until I return from my hunting trip after Christmas. I just don't believe this limbsaver would look very good after being sanded.
Now here's the kicker...the one they sent me for the wooden stock (which states it is for a wooden stock) fits perfectly on my synthetic stock. The one for the synthetic is exactly the same size. Hmmmmmmmm......
Karl