I know someone with a Boyds thumbhole on a model 16 in .204. I like the stock quite a lot. Nice looking stock and feels good to me. Nice palm swell, and it lengthens the distance from the palm to the trigger. That's nice for me because I don't find that distance comfortable on most stocks (at least most Savage stocks?). The person who owns the gun finds that new distance to be a bit too long for his taste, though.