Guitar: 26.5 inch, T.O.M bridge, string thru body. String gauges: 11-52 + 74 Tuning: Ab-Eb-Ab-Db-Gb-Bb-Eb Problem: string...buzzing. That's the best I can describe it as. It's not fret buzz, and the string isn't rattling like it was when I was using a .59 for drop Ab. It is very tight now, but when I'm not palm muting there's this buzzing behind the note. It's very annoying. Is it not sitting in the saddle right? Or maybe the nut? Do I have to file the nut down better? I am slightly worried the T.O.M bridge can't take a string this size ; Any help appreciated. Note: it doesn't happen when I pick very lightly.