There was a post on removing a loaded camper and using it off the truck. FWC advised against it. The bottom needs to be fully support. The biggest issue is lifting the heavy camper off the bed. As stated previously the wood tub is stapled to the frame. Ask yourself this question: What will I do if the bottom falls out on a trip? How will I get everything back in the truck bed? Each his own, but doing this has risks and probably isn't done or considered by the majority of FWC Owners.
Thanks for the input. I didn't know that the tub was stapled to the frame...that is good to know (and hard to imagine). When I take the camper off I do lower it onto two mini / foldable sawhorses and only have a bit of weight, for stability, on the camper legs. It would be a bit of shock to have the unsupported bottom drop out!