I've had several Ibanez's. Love them except the Floyd Rose "LICENSED" tail pieces. The Floyd Rose site dis's these "licensed" versions as not truely being up to the standards of Floyd Rose. The most common problem being the quality of steel used in the knife edge where tailpiece makes contact with the posts.

The only way I've found to fix these is with Hip Shot's Trem Setter. It works really well. My JS100 was pretty much useless until I put one in it.