I have a really nice MIJ 62 re-issue tele with Bigsby, which plays like a dream..... Except tuning stability is in question. The set up is great and the nut is not binding, and there is nothing loose or binding. String contact points are lubricated. The only thing I think I can of changing are the old style slotted locking tuners which I hate with a passion. Are there any modern screw locking tuners that would fit without modification required to the neck?? I'd like the ability to change it back to stock. Are there any tuners out there that can just be dropped in??