I started to have problems with the windows
opening when on dirt roads that inevitably became washboard roads. The first time we did not know the widow slide open and the inside was covered in thick road dust. We used duct tape. But when we got home I wanted something more permanent so we did the yardstick thing.
We too just upgraded, to a Big Foot 25RQ. I have been thinking about getting a diesel PU. But I must say going from a Casita
to a Super C is mind boggling. I would have to sell my house, sell my neighbor's house, rob a bank, blackmail my kids for money, and I still would not have enough money left over to fill the fuel tank...But man o man they are nice.