I've had three set's. 1 on my old K5, and 2 sets on my 97 DD, all 33" mud rovers. For a tire that performs very well on the road, they are very good in the mud. I saw the post about them loading up... never have seen it on mine, but I have a vortec 350 to sling it off, so maybe that's the difference. I have never had a flat on my rovers either, not on any of the 3 sets. The first 2 sets saw a lot of west Texas trails, and even the rocks in west texas have thorns ( /forums/images/graemlins/smirk.gif ). My land was full of mesquite, and no flats. I got a lot of mileage out of the sets as well. They are not the tire I would go with on a trail only rig... simply because I would be willing to sacrifice road manners for trail performance, but on a DD they are great. And, with the price, I say you won't be unhappy if you choose them. They are probably the second best mud tire I have owned (in terms of a DD tire), the best was the ol' Yokahama mud diggers (not super diggers) which are not made anymore.