Thinking about getting a Keith banjo tuner to put in the low E on my Bakersfield (Larrivee Tele). It has Kluson tuners. From what I can find at Kluson (actually WD), the Kluson tuners on the guitar are 8.8mm shafts (about 11/32"). The Keith tuners need a 3/8" hole (12/32 or 9.95mm). Just wondering if anyone here has installed a Keith tuner in place of a Kluson. Any idea of how to fix the hole if I wanted to go back from the Keith to the Kluson?