I bought a used Schecter diamond series 006, that has a stripped truss rod. Any idea how to adjust this or to remove it so I can replace it? Per the instructions on the Schecter site I have tried both a 5/32mm and 4mm allen wrench to no avail. They both fit tight, but when you try to turn them nothing turns. I am thinking it is stripped. Also looking at the truss rod nut it looks like it is slight bent to the left.