I don't have the guys number right off, but there is a guy in Cleveland who does GREAT work with Banshees. He's also helping put on a flat track race series in Cleveland right now, I'll try to get his number tonight for you and PM it to you. He used to be the head tech at GA Powersports & Equipment before they shut down shop. He's REALLY reasonable on his rates, and is a very nice guy.

Or if you'd prefer Paul @ Blue Ridge Yamaha is amazing with anything that says Yamaha on it anywhere. Slightly more expensive though.

Either one are very nice guys and know what they are doing.