Join Date: Mar 2006
Location: Moncton NB, Canada
I have been using floating bridge Ibanez for more than 15 years now. I always take all the string off when restringing. Unlock the nut, push the bar down and detune all strings so the bridge will stay flat in the body with no tension. Remove all strings. Some people will tell you not to do this, go from tension on your neck and springs to no tension at all. Its no problem if you restring right away or that same day. I think it would be a bad idea to leave your guitar tension less for a week or more, but 10-20 minutes while you clean it wont do any harm. Then simply put the string back on with little tension and bridge still flat on the body. Then I simply push down on the bar to where it should be, and tight all strings until the bridge stay to its original angle by it self, and by doing just that, all string are usually very close to being in tuned. After using the same brand and same gauge of string it gets very simple to restring a floating bridge guitar, it just takes practice and then you get to know how your instrument will react so you know exactly what to do.
EDIT: maybe once every 5 times I need to do minimal spring tension adjustment, just a quarter turn to each spring usually does it. I never touched my truss rod.