I have a guitar i'm rebuilding, an ibanez gax, i know piece of junk! but i love the shape of it!
anyway i bought a neck that isn't quite wide enough, by about a 32nd of an inch i've tried shimming it with a piece of cherry, sanded it down, but i can't get the neck to sit straight in the neck pocket. I believe its mostly to do with not being able to create an exactly flat surface on the insides of the shims, but i'm not totally sure if i'm doing something else wrong, or missing a crucial step in the process of having it hold the neck in straight. i'll post pictures of it later, so you can get idea of what i'm dealing with here...but i'm sure you can sort of get an idea with my description.
Also, i built a neck extension the correct the scale length difference with existing bridge routes, but i may end up having to fill them, re-drill them anyway...i don't really mind re-drilling holes, i just want to get this neck pocket to hold my neck in straight!
any ideas fellas?