For you Floyd Rose guys...I'm thinking of getting a big brass block from Floyd Rose Upgrades but don't know how to check what size I can go up to for my guitar? Any suggestions?
Print out an online milimeter ruler and measure from the baseplate up to see what your clearance is. Generally you can only use the biggest one with a non-recessed Floyd.
I got the biggest one I could for mine. The block is actually too tall to use the back plate covering the cavity unless you route a hole in it for the brass block to stick through.