Zwiebelchen
Fractal Fanatic
I change them in chunks of 3, in order to gain better access to the fretboard for cleaning. Bridge setup is perfect; stretching every time when changing strings.Do you change the strings one at a time? Do you stretch every string a little when you change it? Is your bridge well setup?
The Floyd Rose stays perfectly in tune once tuned. That's not the problem. But actually getting it in tune takes ages. At least if you're as sensitive for pitch as me.