This has happened on my other guitar which is a Jem 555, but the problem I have is the
tremolo arm being metal on metal when I use it; it doesn't slowly move out of the way after using it, it tightens to where it can't move and I believe it's supposed to have smoothness to it. For example, when I pull the bar up to use it, it falls right back to being really tight instead of moving slowly back down to its position (not actually raising or lowering the pitch of a note, but moving just the arm itself.)
I'm not sure if it's the hole that the tremolo arm fits into that's not right or if it can be cured by getting another tremolo arm. I looked on the tremolo and it just says "Licensed under Floyd-Rose patents" so I'm not sure what kind of replacement arm to get, where to get it and if it will even help the problem I'm having.
It sure would be nice to do that little trick I learned from Petrucci where he flips the end of the tremolo quickly and makes the note he's hitting vibrate (Under A Glass Moon.)
That's one thing that bothers me, but there's one more: I have no idea why, but the low E string always gets out of tune. Like not just going flat, it detunes a couple of notes some times suddenly and I'm not sure why. Strings are wound with some kind of metal and on the inside it's a real "string", and I think that maybe some how the metal it's wound with is coming undone when I lock the string into place on the bridge/tremolo and bend it, but it's just the low E that gives me that problem. I'm not sure if I'm tightening the string too tight or too loose, (it has to be too tight if so) or if it's the strings (D'addario 9-46) or something else that I'm not aware of.