I have been looking at upper end 5th wheels for a year or so now and have been at afew dealers where I have watched them moving for sale units with all the slides extended. I find this quite alarming. Is this standard practice, I certainly would hope not. It makes me think twice about purchasing a unit that has been on a lot for a while. One dealer in particular in northern Indiana has a lot of units sitting in an unpaved lot and we watched them move several big units on rutted uneven roads with no apparent concern. What is the factorys position on this? I would almost thinkthat that could void a warrenty. I have never owned a 5th wheel or any trailer with slides for that matter so I have no idea about the kind of damage that could cause.