I cannot get rid of fret buzz on Martin HD 28 no matter what I do.
I’ve taken it and had it refretted, then taken it back to the same guy again. I’ve also taken it to another qualified luthier who basically told me he had 3 seperate luthiers working at the shop look at it and no one could find anything wrong with it, I just do not understand. It’s a 2018 Martin HD28. the action is just under 2.75 at the 12th fret Low E. I play bluegrass so I like it a little high. The neck is not backbowed nor is it straight. I put a capo on 1 and hold down the 14th fret and there is a standard amount of relief. I’ve taken a fret rocker to it myself and couldn’t find anything off. It’s the worst with a capo on the 2nd fret, on the D and G string. Playing Bluegrass I play capo 2, in the key of A. And every time I do a G run there is a buzz on that open G string capo 2. There is 0 buzz when not capoed so I don’t think it’s the nut. I’ve tried different capoes, tightening and loosening them, everything I can think of, and it still persists. I tried raising the saddle but I have to tighten the truss rod to the point it’s almost straight when I do so to avoid it being unplayable, and when I do that the buzz comes back. I have no idea. I can’t give it any more relief or it will be too high to be playable. This is a 2018 guitar. Also, I used a guitar action gauge and measured the distance from strings to soundboard and it is right at the recommended distance, so I don’t think it needs a neck reset. It’s not just when playing insanely hard either. Please someone help. thanks