As a boost only system, it doesn't seem to be there. I just run the knobs up until they sound good and never move them again, which is in the 70-75% open range on both knobs.
+1...that's the beauty of the the 2 band and why I love it. Simplistic, intuitive, and sounds great.
Don't Ask, Don't Tell?
Maybe that's a good excuse for sloppy playing.