I'm constantly changing the pick-ups in my strat, have been for many years, I've got quite adept at it, there have been periods whenever I changed strings I did the pick-ups as well. I have realised that i am not alone in this strange behavior. But finally I have found a tone and feel that I'm really happy with these come in the shape and name of Chevalier Pick-ups hand made in Canada by Jeff Chevalier.
I've got the 67's and loving the sound, so if you are on the pick-up replacement warpath I highly recommend these little blighters!
http://www.chevalierpickups.com/