Rick and Char were ahead of me. They warned me about a moby traingular shaped rock coming out of a ledge. I had already seen it and corrected to miss it, which I did...and ran into some other place about 10-15 feet further down the trail, which I never saw driving or again.
Most everyone who has seen it thinks no tire would have survived. I took it to a tire repair guy and he felt that it was marginal to try to repair it for use only as a spare. Even rubber welding would not make it usable.
My judgement of the KOs is that they are a cut above the old BFG ATs and I recommend them. The compound is real sticky, the edge is like a mud tire and the siping wider on the outside. They were excellent on sand, silt, and rock at Moab. I have not tried them on slippery or real wet rock, but feel they would do quite well.
Sometimes I felt that airing them to 11-12 lbs. was too much bulging and ballooning. I will have to experiment with them some more, maybe 14-15 would be better. Kinda depends on the trail.
There are certain situations where the MTs are a much better off-road tire. The larger lugs grab hard rock and pull you over while the KOs need surface area for traction. The KOs shed mud well, but the MT is obviously superior.
The KOs are supposed to last 60K miles, we'll see about that. They are an excellent highway tire, but I wouldn't air 33's over 24lbs on an Explorer...not enough tread on the ground. Still they are about the most stable tire I have used on the highway. Mileage with them appears to be far superior to anything I have used. I got 21.1 going up to Moab, which involves ascending the Colorado Plateau. Returning I got 24.4. All this was mostly at 70 mph on cruise control. As I recall the best I got with MTs was 19, but that goes with the large lugs having to push all that air backwards.
Some people are concerned about quiet tires (while their dual exhaust roars through the night). The KOs are much quieter as expected, but who cares? ANY tire, whiny or otherwise, is a great sound to me, so long as it is headed for a quiet trail somewhere in this great land of ours with friends and co-conspirators like Rick and Char, Trace, Gonzo, Paul, Paul, Paul, Kev, and many others.