I have an Epiphone Goth Thunderbird I am currently doing up, and found that the neck was shimmed. I generally hate neck shims (especially crappy tape ones) so removed it, and drilled out the screw threads of the neck bolts in the body (as all should be done). Anyway, I have found I need to shim the neck again, but I want to do it properly. I know I should use a tapered 'wedge' to give the best coupling and support to the neck. I read that using a cheap tape style shim near the rear of the pocket is bad for the neck and tone. Can anyone make this shim for me? If not, where can I get materials to make three shims of gradually reducing thickness?