I ran a log through the ldsogredux, had a recommeded adjustment of -7%. Did it, ran it for a week (my milage shot up from 10mpg in town to 12, 14 on hwy to 17.

) Just to double check things, logged again today, and now its telling me to go -6%. Would that mean I need to 'add' that to my current -7% for a total of -13%?
My ride/tuner:
2003 Chevy Avalanche 2500, 8.1L
U7193 Predator, v9r08
Any other advice?
Thanks for the help!