i don't agree. we should all know how our guitar functions and know what to do when problem arises. I'm not too sure about the truss rod though, I think logically speaking, we should tighten it to counteract with the heavier strings. turn only 1/4 at a time, and let it rest for a day, thats for sure, if u over adjust the truss rod, u have a new 2-piece neck.