My bass project is starting off really well (I've been reading, pricing and designing for about six months, and I think I have something tangible), with one small exception - the truss rod. This thing is becoming a headache. Since I don't want to run the risk of a Hot Rod being too short (even for a 36" scale), I'm thinking about making my own rod. For simplicity's sake, it will be a single-action rod (I know I'll have to have a channel that is deeper in the middle than at either end). And since Melvyn's book doesn't cover absolutely everything about truss rods, are there any other resources that I could use to aid me in the construction of my own rod?