I 'm going to guess that it's something "rattling" that's annoying you, right?
Most likely culprit: the spring behind the saddle is rattling, so either stretch it out a little, or get a longer spring, or remove it. It really doesn''t do much of anything.
Or, one of the set screws that adjust the saddle height is rattling , so try to see if one of them isn't solidly touching the baseplate of the bridge.
Other than that, maybe just check to see that all the mounting screws are tight and the saddles aren't moved around and vibrating against each other.