Chevy 6.0 Super Ike Gauntlet

Useless test to me. first off the manuf gives you manual control of the trans for a reason. use it, obviously letting the truck shift for itself does not work that well! secondly that is a huge rpm drop with the 6 speed trans. almost like it had a low 3.?? gear! which would also explain why it couldn't hold the speed after it downshifted.
I don't like their tests because they don't go out of there way to get the most out of a truck.