I really like tinkering with my own basses. I recently did a project with a cheap p-bass where I added a j-pup (with it's own volume pot) and a 3-way switch - kinda like a fretted Tony Franklin. My birthday is coming up, and my Ol' Girl is asking me which book is best for her budding bass tech. I see that many have recommended Erlewine's Guitar Player Repair Guide (3rd Ed.), and How To Make Your Electric Guitar Play Great books. I also saw LeVan's Guitar Setup, Maintenance and Repair. Do these books cover basses well enough, or is there really any appreciable difference between working on basses vs. guitars? Are there any books exclusive to basses...specifically Fenders? If I was going to get just The Bible...which would it be?