Several of us run the Discoverer AT3 E rated on our plow trucks. They are not Blizzack ice tires but very good. Much better than the older and harder compound Discoverer A/T. Great in heavy rain and farm fields. The tread has good clean out to keep bitting forward instead of trenching deep. Mud roads that are sidewall deep were handled in 4x4. The tire noise was not as loud as I expected, obviously louder than h/t but no whirring. Been pleased with the towing mannerisms. Have never tried them in burried to the axles swamp mud or rock crawling.
Never tried the Discoverer AT3 XLT.
