2011 6.7L Powerstroke - Need Advice on Puck

[DBrat10SS]

I just purchased the Extreme Power Puck for my 2011 Ford F-250 6.7L Powerstroke. Question.... Any advice on the "Diablo Dial" settings? The instructions just say crank up the dial for more power... So why wouldn't someone run the dial turned up all of the time? When the dial is turned all the way to the left is that stock? Where is the best position on the dial for improving fuel miles? Where should it be set just for everyday driving? Any advice would be greatly appreciated!

[mikel]

all the way to the left is stock, yes.

Ideally, you'll want to play with the best setting for best mileage, and leave it where you like it for best power output.

Thanks