And my Selmer Centered Tone sounded pretty awesome (1950's horn). When I lined up that tone hole in the tenon properly. I think Steve or Ed posted an article here, someplace about "restoring" wooden clarinets by submerging them in oil or somesuch. I really couldn't say if that's helpful or not: I'm not a repairman or carpenter. However, if you have a horn that sounds "decent", but has some problems, an overhaul is going to make it better. If you have a horn that, for lack of a better term, is a "basket-case" (i.e. the horn and all its parts are in a basement someplace and the rats have gotten to 'em), it's only "possible" that an overhaul will make it all better. My opinion is that the #1 thing that makes any horn difficult to play, other than the player, himself, is the mouthpiece (and reed). Seriously, I made my student-model Buffets sound excellent with my Selmer C85 mouthpiece -- and that's not even Selmer's top-of-the-line 'piece.