Experience is an excellent teacher and with all of the long time rv'ers on this site, I see multiple options that appear solid. I have a long term relationship with my tire dealer and have been riding Good Year Endurance for over three years without a blip. If my dealer sold Carlisles, I may be riding on them. My biggest concern is continually checking for proper pressure and wear. I prefer to minimize the chance of surprises on the side of the road....