I ran KO's on my '06 F-250 and currently running a set of KO 2's in fall/Winter on my '11 F-250. Happy with both of them. Because they're my "winter" tires, I run them about 40K mi and then give them to a buddy who's happy to run tires until he can see the air in them.

I can walk on water.......................but I do stagger a bit on alcohol.