Since this is your first take on the floating vibrato, the bottom line is all about tension balance. The tension of your strings should be equal to that of the vibrato springs (located at the rear cavity) so that your vibrato sits parallel to your body- that’s the ideal set up. If you find that, after locking the strings at the nut, the tuning’s off, then rectify it via the fine tuners at the vibrato (these looks like a thumb screw).
If you detune, you’ll find that the vibrato isn’t raised enough to sit parallel to yout guitar body (because there’s less tension from your strings) - then the tension balance should be rectified, i.e. loosen the vibrato screws. Employ the opposite strategy should you wanna revert to std tuning. I’ve been messing with these floating vibratos for about 10yrs now, albeit the cumbersome nature, I enjoy playing guitars with these units.
