I'm running E-rated BFGs, but mine are the original TA KO. I run the fronts at 42lbs cold, and the rears at 36lbs cold. It gives me a good, even wear pattern across the tires and is only a pain when I rotate them, as I have to air up the rears and deflate the fronts. But it gives me good tire life, good handling, and the best MPG possible with my 2011 CC Pro4x.