So it came time to replace the stock BFG rugged trails that came on my 2011 X. The BFGs lasted 34k miles, still had some tread left but the wet traction was horrible and almost dangerous. After mus reading on the forum I decided to go with Cooper AT3s in the stock size 267/75-16. Found them at Discount tire for $680 out the door. The Coopers look good, much better tread pattern than the BFGs. They rode nice and were quiet at slow speeds but over 70 on teh interstate they vibrated horribly. The steering wheel would shake a couple inches. Took them back and teh guys at Discount tried balancing them twice. Even though the balance showed good the tires just would not ride smooth at high speeds. Swapped them out for some Hankook dynapro ATMs. These tires ride smooth at high speeds. The side siping looks aggressive. They may be slightly noisier than the Coopers but are still a quiet riding tire. Wet traction seems good too. Have not had a chance to get them off road yet, but I expect they will do much better than the BFGs. Overall I think the trad design of the coopers is better but evidently they have some quality problems. So beware if you go with Coopers, you might get a bad tire.