Very few people are commoners here, especially the ones with the E85 tunes. You could try F150Online or any of the larger forums. From what I remember, the E85 performance tunes were better than stock but not as good as the 87+ tunes. Their mileage for the performance tunes were definitely worse because of the two fold effect of E85 and heavy throttle.
If you are dead set on an E85 tune for areas where that is all that is available (I've heard the do exist), go for an E85 tow tune as your last ditch resort. Otherwise, I'd leave it alone. Really, alcohol should be avoided anyways. It is a toxin to your body and junk for your engine.
If getting your money was the priority, I'm sure Cody would have toted it is as the best thing since sliced bread. Then you would have spent $30+ on tunes that aren't up to par with other fuel standards.
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