This one used to have an FRX on it, but it was a piece of crap so I reverted it to normal LP-type stoptail and bridge. Now I just installed the Schaller fine-tuner stoptail and a Kahler locking nut and it stays in tune perfectly. Also the tone has improved quite a bit, being that the Schaller stoptail is made of real steel and added some nice high-end. Love it.
Sounds different than the real LP because it's basswood with maple neck, but very nice in it's own right. Plays like butter too, later I'll add a new Tusq nut and slightly level the frets to get that perfect action.