100% E85 woes, maxing STFT @ 1.55 scalar and going lean - HALP!!

[Dfv2]

So this is something alarming, hope you guys can chime in. Looks like fueling is hitting a ceiling, and once (something) hits this ceiling my STFT goes straight for the moon leading to a scary lean condition .

FBO no meth, straight E85 (Mobil class I summer blend), scalar at 1.55%, 78 degrees F. I started at 1.4 and worked up, bailing at 1.55 because I didn't see this getting any better. I ran 40% E85 on the pre-scalar maps quite successfully (under the 34% cap) so this is a new issue. Unfortunately I did not log any fuel pressure or fuel related parameters other than STFT/LTFT and lambdas for bank 1 and 2.



Here's how my main fuel tables are setup, am I triggering something strange with the richer AFR at 4500 RPM? Note that this is where STFT skyrockets...


Finally, the attachment is a zip of the map I'm running (IJE0S) and the raw CSV. I appreciate any insight you may have as to what I've done wrong. Assuming there's a larger issue here, I don't want others to just pop in a scalar of 1.4 off the cobb helpfile, fill with E85 and go to town.