Re: Advice on a fast-playing, not-Les Paul-but-close guitar?
How thin it is isn't all.
One of my best sounding basses is an old AVRI and the neck is very flat, but also very wide. And the truss rod is light. The whole thing flexes pretty much like a bow would.
My theory about good sounding necks is:
- no heavy truss rods. I don't know and don't care whether the problem is the mass or the amount of wood removed. Just don't do it
- enough total mass, thickness and flexibility that it isn't too stiff from the wood
- but the fibers have to run through the neck. If you make it very thing you don't have enough fibers running though
So depending on your specific piece of wood there would be an optimum thickness but it isn't the same for all pieces.
Really, I think it is like a good English longbow. You want it to balance the strings very nicely, be flexible but absorb nothing.