I recently acquired a six-string fretless Carvin. Overall, I like the instrument, but the strings tend to clack against the fingerboard and, when fretted (or whatever you call it with a fretless), the B-string buzzes/clacks. I recently brought it to get set up, and the repair man said he wouldn't do anything to change it, and talked about how beautifully it played. Is this something that fretless players just work around? The only thing I know to do is to raise the action, but I think the action is set right about where it should be for a fretless. Any suggestions?