B+ motorhomes

I just don't like the idea of putting that weight on the roof for two reasons: one is the addition of about 100 lbs that far above the center of gravity; the other is having that extra weight on a part of the roof that wasn't designed to carry weight. the AC port is already stressed for the roof AC unit, but with that rubber/vinyl/paper/chewing gum roof that many are using now, I don't plan to put anything up there that would compromise the seal, or the structural integrity. Additionally, I suspect that putting anything like that on top would void warranty.

TheWizzardOfWhimsey: when are you starting your tour? I didn't think to talk to you about watching driveway dips - sorry. I have developed a method over the years of minimizing that by leaving steep drives at an angle, and don't see that I have rubbed the tire yet.