They're buzzing all over the place. It was just the 12th, 15th and 19th frets when I started, high E & B strings. Bends died on the 15th. I filed those individual frets, one at a time, keeping careful watch with the straight edges. Well, that made it worse, so I leveled everything from the 8th to the 24th frets, crowned, polished. Just screwed things up everywhere I leveled. Notes dying quickly, thin, buzzy notes, very little sustain.