Rather than having a seperate gas mileage tune (like they have done with the different intakes and 91/93 tunes), how about if they just added a drop down menu under the AFM/DOD enable/disable function (like they did with the TM) that allowed you to increase your AFM functionality (also like +25%, +50%, +100%, etc.). That way if someone running a Vararam tune or Rotofab tune also wants to increase their AFM they can. I know the lack of this ability with the Cortex was the main reason I was on the fence for so long over this tuner and had I not gotten the deal I got on a used one would not have purchased it. I just could not see spending $350.00 on this tuner when I could put that towards HPTuners which would give me the ability to increase my mileage (by tweaking the AFM) as well as doing all the other things this tuner can do. Of course the downside is the learning curve which I read is significant with these tranny tunes and the initial expense.