Assuming that all awnings we are talking about have that device, but not all models of Berkshires seem to have the same model of topper/device. Mine do not. Both of my big slides have unrolled the slide topper material completely in the right wind conditions and (for me at least) only stopped that after tightening the springs and particularly after I added the cover so that the side wind couldn’t get between the slide and cover enough to billow.
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2016 Berkshire XL 40A towing 2020 Jeep Wrangler unlimited.
Prior to this Jayco fifth wheel: 24' Eagle, 30'Designer, and 40' Jayco pinnacle.
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