Recently purchased my first Gretsch, a Steamliner 2622T and I'm in love. Just sorting out a few niggles I have. I've installed a jack plate, which did require some careful drilling. I've got a local luthier to make a new nut for me, and now I'd like to install locking tuners. Does anyone know of a set of locking tuners that will fit a 2622T and using the existing screw holes? If not, how brave/stupid do I need to be to drill the on head stock myself? Thanks in advance. Loving the forums by the way, learning loads.