Update: I filled up yesterday, not a full tank, but I put in about 6 gallons of 87 and 1 gallon E85. I have driven about 20 miles with this mix so far and ik thats not much but it does some to accelerate a little better, might be the placebo effect but I really wasnt try to think about it while driving. I'll see today how the MPG's go as I have to drive another 25 miles to work. With these mixed reviews I might just stay 87, but I'll have to see how many miles I can gain with E85 and if nothing and even possibly lose mileage, I'll stick to regular.
DD: 2003 Ford Focus ZX5-65mm TB, Intake, Long Tube Header, 2.5" exhaust, UDP, Tom's Tune. Almost 200k miles and still running strong!