I have an Anderson Drop Top with a Floyd. I wasn't using it much so I had my local luthier install a wooden block between the body and the trem assembly. Is there a better way to do this other than the block of wood? I really want more sustain so something that is solid (more solid than wood) would obviously work better. Is there any thing else out there that would help increase sustain with that set up? Preferably with as little damage or drilling as possible.