Whats up, For about two years I have owned a 2004 Ste Vai Ibanez Jem. Just recently I purchesed the dimebag Dean from Hell. The Jem has a Floyed Rose lo-pro tremelo and the Dean has a standard Floyd Rose. However, I had the same problem with both. Every time I change the strings the bridge raises and is harder to get in tune. I change them one by one without taking all strings of at one time. I heard this is the way your suppose to do it, so you don't loosen up the bridge. Any advise please!!!