I've read many buzzing threads and just need clarifying. I'm new to the anatomy of the upright so if you have any suggestion, please speak slow. I'm getting buzz on the first and second positions on my A, D, and G string. I have a Romberg bevel, so no issues on the E. I've used a straight edge and some emory paper to smooth out any small bumps on the finger board, with no real change. Any suggestions would be appreciated.