I received this unit for Xmas. It came with a right angle adapter which wouldnt work given the mouldings on either side of the OBD connector on the car so I called them and they shipped a straight connector free of charge. I connected to my PC, downloaded the updates and then applied the 91 setting to the Commander along with the tire size adjustment from my lift and tire mods. It works great, it seems to have smoothed out the entire power curve with acceleration, engine power, etc... I am pleased so far. Will try the 93 soon to see what that does.
2010 Commander Limited, RR 2.5 lift, Spydertrax 1.5 spacers, Nitto Terra Grapplers 265/70/17