I've been searching for hours and, based on my luck in finding a preexisting thread, I am apparently the only person with this question. So here goes nothin'... With Gotoh/Hipshot/Sperzel tuning machines (the ones with the threaded bushing) is there anything special I need to do to install them? I bought a set of 4 gotoh (ultra light?) replacement tuners and the only special accommodation I can think of needing to make to install them is to ream out the holes to 9/16". Is that correct? Do I need to put a screw through the single bottom hole in the pickup or is that a set-screw. (A screw that just puts pressure on wood without piercing it) Please help, there is NO information on this subject and it is driving me INSANE.