I have had the same TI flats on it for many years, tuned a half step down, so they are pretty loose, very little tension, so the neck is pretty straight. Acceptable amount of relief, but I do get some buzzing recently on the D# string. The problem is the bridge is already as high as it gets, and of course it has the 0 fret, so no nut adjustment. Should I put something under the bridge to lift it, or even put something under the 0 fret? because the truss rod is non-functional at this tension. Could the 0 fret be raised or replaced with a higher one? not that important or audible when amped, but i do like to play it unamped while watching stuff, and the buzzing gets annoying. As you can probably surmise, different strings are not an option.