My experience with manufactures and their "published tow weight and height" is one of question and doubt. Our new Grand Design 27RL had a slip of paper in the document envelope that stated it's weight was 800 lbs more than was stated in the brochure. Height was also taller than stated. It's also amazing how much weight you add by packing food and clothing. Plus what ever you put in the basement storage. Water is very heavy and we always travel with empty holding tanks except for maybe 10 gallons for flushing toilet or emergency water. When you are packed for a trip, stop by a truck stop and weigh you rig, you will be shocked!!