I bought an Adco cover almost 2 years ago...and installed it on Memorial Day. I can walk on the roof of my "Land Yacht" newer moho, so your suggestion of poles is probably a better approach with that thin shiny stuff. We get windy here in the East Bay so I like having all the tie-downs across the belly and the snug-ups on each end. Plus, there are zippers so I can open it up this weekend so my neighbor can use the fridge while his house is tented (ouch!). I hope this is not an "ad," but Camping World is advertising a covers sale next week: give them a call or see if your preferred supplier will price-match.
Cliff & Andrea,
two snowshoe cats, have not been camping yet