Thanks for all the replies. When I pitch down with the whammy, there's always a certain point where I can hear something snap very subtly, and can't seem to figure if it's the tuning pegs or the string through the nut itself. I do have another strat that has a double locking floyd on it, and it's a lot better, with the exception of the G string, which even when the nut is tightened down, will still go up a little after some whammy action. I'm not looking for anything real deep as far as pitch, I generally use it for simple Dwayne Eddy style virbratto and such and am looking for the best solution for keeping that sucker in tune. I believe the bridge itself operates on three springs. Should I put one in that has five? Sounds like maybe I should consider it.
It's that goddamn Jeff Beck. I've been obsessing over some recent video of his, and his last two records have some of the most interesting playing and tone (dear god...the tone!) I've heard in ages. You should all check them out if you've not heard em.