I just found out that a station within 10 miles of my house sells E85, next time I get a chance i'm going to shoot for roughly 3-4 gallons of it after the normal 93 pump goes in. My car is running pretty happy (need to log though, haven't done it recently enough) but hopefully this will clean up any minor timing corrections and give a decent power boost. Without being tuned for it i'm hesitant to try more than 30%, though the winter blend is likely closer to E70 or so.
E88 N54 Alpinweiss/Coral Red/Motiv HTA 3586r Tial .82AR/Other stuff...652WHP
F30 N55 XDrive EBII