I was wheeling weekend before last and I was aired down to 15psi. I was at an offroad park here in florida that has some rock. (I know, weird right) Nothing major but lots of slick hill climbs and rock lined trails mixed with the usual florida swamp. I poked a pretty good sized hole right through an O on my stock KM's. I had to use 2 patches but it held and I moved it to the spare when I got home. I feel like it shouldn't have happened with the terrain I was running on but I am new to KM's. I beat the hell out of my old dynapro atm's with a much more capable jeep in much worse conditions. Anyone else have problems with the KM's durability?