mojave joe I am Bob from Outfitter, I was reading this and I decided to chime in and answer your question. The owners manual is there to help with certain things, yes there are certain models that won't lift extra things on the roof because of the amount of things that were put up there when it was built, so to tell everyone they could put extra things on there roof wouldn't be a good thing without checking with us first, we usually tell people how much weight that is at time of delivery, we must of missed it with you (sorry). Your camper has an acme screw driven electric lift for the top, it is driven by a motor from happi jac and if I remember right, your roof has an air conditioner and a solar panel on top so it could lift another 200lbs.