Hey all, my new best friend arrived and passed inspection so far. Need to make sure the Truss rod is okay, but don't know what to use to adjust it. Was there a tool like gibsons have, or do you just a nut driver, and if so what size? Also, how much bare thread should be exposed? Right now there is more than a quarter inch (rough guess, didn't measure, and don't remember), and I'm just wondering if I need to throw some washers on there before adjusting. Thanks in advance!