I have a Lakland Skyline JO as well, a fretless model. I went from Hipshot
LIC. clover style ultralites to ostensibly the same size in Hipshot
USA ...there was a slight difference. Quite annoying, having to do the work to enlarge the hole...but worth it.
Things about doing this that didn't bother me:
the ultralite design is very clever, and doesn't actually require an exact diameter of hole. By the nature of the design, the tuner screws into itself, allowing it to clamp tightly to the headstock, and the one screw holds it into place, directionally.
So I could kind of just make the hole bigger arbitrarily to a degree, and if the tuner fit in the hole and the hole wasn't bigger than the "nut" part, I was golden.
So I'd assume your JO also has Hipshot
LIC and you installed a Hipshot
USA detuner. Honestly, I would just get 3 more matching tuners from USA and do work on all the holes. It would be an upgrade that you'd have no reason to reverse, and would make the bass more desirable, should you choose to sell it.
BEST OF ALL...you can sell your old set of tuners and offset the price of the new USA tuners, which are indeed better, by quite a bit.




