My understanding is the sensor is a much better option. Wonder if the tables for our Sky is there just not editable at this time. Will be interesting to see what you come up with. If you need to do any comparison let me know I have turbo on mine also. Should be out of deep freeze storage in the next three weeks or so. I have access to E85 as soon as my warranty on my 2015 Cruze runs out going to go to E85.
A little update to this. Seems not all the E67s have the same flex fuel logic. Like what you said with your Cruze, I'm hearing from a VERY reliable source that we can add the sensor and make some changes in the stock LE5s ECM and run from E0 to E85 and it will do the blending!!!!
This opens up a whole new ballgame. F$#@ YEAH!
(I'm a little excited. With E85, 500 whp may be possible with the new build)