I recently replaced the fine tuners on my Ibanez Edge Pro tremolo – If any one else is trying to do this on their own, you’ll find that the stock fine tuner screws won’t back all the way out to be removed. That’s because there’s a very small, black metal washer/clip on the end of each screw that keeps them from being removed (or falling out). You’ll need to snap each of those off first in order to remove and replace.