All you western boys riding on slick rock all the time can use those AT's with great results (Yeah, I'm a little jealous). The MTR is one of the best for that kind of wheeling. I live where there is lot's of mud and some rock. For this terrain, the BFG MT works much better. For that matter, any MT does better, but I especially like the BFG. The AT's and the MTR's don't clean out easy enough. The MT's just walk up stuff that the AT's just slip and slide on. The last set of tires I had were MTR's. They were great unless it was real muddy, then they were just OK. Plus, I could never keep them balanced. I just gotta make up my mind if I'm going to run the AT's daily and keep a seperate set of MT's for off-roading or if I'm just going to run MT's all the time.