A couple Gryphon questions, what tunes and octane?

[PHS79]

Originally Posted by 88Racing

The first 2 look good but are you really going to use the 91 oct eco tune that much?

For probably the last 6 months all that I have been running is 91 oct. Mainly because I found that I with 91 oct (100% gas) I have seen a 1.5 mpg increase, I went from a average of 15 mpg to 16.5 mpg.

Right now I am currently running my Edge on lvl2 because I didn't like the "lack of lowend" that lvl3 had. Granted the 1 full tank I did run lvl3, just to check mileage, and I got 17 mpg. But the "lack of low end" that the canned Edge tune seems to have, vs lvl2, is the only thing that concerns me about getting a performance tune. Granted the truck seemed a little funner to drive in lvl 3, once the rpms got above 2K or so, but from a standing stop it just seemed like the truck was a slug and didn't even want to move. Which leads me to another question:

Is there a BIG difference between the custom performance and the canned Edge lvl3? Also do Bills performance tunes have more low end power then the canned Edge?