I have been having issues with BFG AT's running round. One set in LT265/75/16 D range have been on the road for around 12,000 miles, and while they are wearing correctly, that is, not rapidly, they do not run true and never have. The tires have been on two trucks so far, both in the 5,000 pound range. The degree of out of true is just below the level of annoying, so I have continued to use them.
A recent set installed on a Dodge Ram 2500 Cummins were simply junk. They were 245/75/16's in an E range, and from day one, they hopped around like they were on dope. At 75 on the interstate, I felt uncomfortable about the stability of the truck, so I slowed to 65 for the balance of a 2,000 mile trip. After the highway trip, I put the vehicle up on a rack and engaged all four tires in drive. The wheels ran perfectly true by visual inspection but the tires were out of round at the tread by a quarter inch. After 3,000 miles I took the vehicle back to Discount Tire for a balance check and a radial force check. Even though, according to Discount, the tires ran within spec, they offered to replace them with a different brand of tire, no extra charge. I got Bridgestone Dueler AT Revo's in the same size and range, and they run true.
Another observation about the BFG AT's on a heavy truck was that the tread was erasing itself so fast I could not believe it. With only 3,000 miles on the tires, I had lost almost an 1/8th inch of tread. This is just not acceptable.
I have used BFG's for years and still have two sets in use, but not on the heavy Dodge. Whether it is the vehicle weight (just short of 7,000 pounds) or not, I can't say, but I don't recommend the BFG AT on a 3/4 ton or larger truck, and I find them marginal in the popular 265/75/16 range. My other set of BFG AT's are 235/85/16's, and they run fine at all reasonable speeds, but are mounted on a light vehicle.