Hauling my 5,000+ lb truck camper (in the bed) over a couple hundred miles this winter hasn't worried me, untill now. This will be my first long haul, 2,000 miles, 1st summer trip, and probably heavier since I'm moving and will really load the TC down. Should I add one of them Mag-Hytec covers for cooling and extra capacity? They are not cheap at $275+tax+more fluid+shipping. I also asked on DP forum, but think you all are a bit smarter.