I haven't run the max effort since I do not have gauges yet. The street tune is laggy and tons of smoke on the bottom. Runs great on the top side though. Looks like an old 12v cummins if your not careful.
The economy/tow tune is a great all around tune. Light smoke but crisp on the bottom and still strong enough on the top. Ran it this weekend all over Texas with an only 18' steel enclosed trailer picking up furniture for the wife. Very happy with this tune so far and will probably leave it on when empty.
I need to log the street tune to see what's going on there and give Kory a call. My fuel system my not be up to par for the demands.