I used the steps found here:
http://www.ibanezrules.com/tech/setup/stretch.htm
And I'm back at square one. I posted a thread last week about my bridge and the tuning drifting flat. I thought it was the weather here in Vegas, because it happened out of nowhere. The strings had been on my guitar for a good month, and I'd been playing it very regularly without having ANY issues with the tuning. I couldn't get it out of tune if I tried. Then, out of nowhere....it started going flat.
I also tried different springs and that didn't help. The room my guitars are in is temperature controlled, and it hasn't gotten dry here in Vegas yet. We've had no overall change in the humidity since I've gotten the guitar.
Oh....and they all go flat at the same rate. So, my low E doesn't go flat any quicker than my A or G strings.