I bought this bridge to replace the tune-o-matic on my new Gibson Sg with vibrola, hoping to help tune stability. So far it´s safe to say the tune stability has improved, however it is clearly not the best bridge to go with a vibrato system. The rolling saddles are clearly not loose enough to turn when the vibrato is used, and that means the whole unit has a tendency to move back and forth.
Overall, a good bridge, just remember that the design of the saddles is primarly to give room for adjustment when it comes to the strings spacing. If you, like me, are looking for a roller bridge to go with a vibrato unit, there are way better and more stable options on the market.