Mine had the knife edge/post problem. I had to widdle down the knife edge several times. Ibanez fixed me up with a warrenty plate... Problem gone. I was lucky, as there aren't really any spare trem parts laying around, as a general rule. Nice folks there.
I happen to know that Rich stocks a couple though. Gonna' have to call you again one of these days old man.
The UV777PBK is still one of my favorite guitars. Since I have 3, the BK is dropped to A and sounds great.