If your guitar has uncomfortably high action up above the 12th fret -
go get a neck shim installed at your local luthier.
I just had one put in my latest acquisition - a olympic white MIM strat with factory Floyd Rose bridge. It's a NEW GUITAR!!!!!!!


I can't tell you how happy I am with this little tweak - my guy uses a piece of wood in the shape of a shoe-heel insert (only smaller of course) and it re-alignes the angle of the neck so it follows the strings and the action is the same height roughly from the nut to the bridge pickup. The playability above the 12th fret is amazing -it's the most startling mod you can do for playability that I've come across.
Anyone else done this or care to comment?