Truth About Truss Rods – Part 2 – Myth Busting! Published Friday, August 22, 2014 by DrKev Truth About Truss Rods – Part 2 – Myth Busting! For too many years, too many people have spread too many half-baked ideas about setting up and adjusting guitars. Truss rods are of course frequently implicated. So, at the risk of courting controversy, let's bust some hoary old truss rod myths.