Quote Originally Posted by Simon Barden View Post
My mate Max (see above) has a whole range of Ibanez S types of different ages (he moved to them from Jems and RGs because of a worsening bad back and their reduced weight), so has a mixture of Edge, Edge Pro, LoPro and ZR trems. He prefers playing the Edge style ones over the ZR, but the one he plays the most does have a ZR on it and it stays in tune for him. I'll ask him if there are any special tips on setting it up.

Cheers mate, that would be much appreciated because I have a white Ibanez RG350DXZ which features the ZR system, but it uses knife-edge pivots and it tends to come back flat after a dive-bomb, and sharp after a pull-up, I've tried lubricating the knife-edges with lip-eze but it makes no difference, there is very little wear on the knife edges, I also tried replacing the locking nut, tried making sure the neck screws were tight, and also tried making sure the string-retainer bar was adjusted properly, the locking nut screws are nice and tight too.