Have a 2020 Four Winds 31y. Cover it when we aren't using it for a month or so (so covered less than half the time). Bought from carcovers.com. Ripped on first use. Called company, sent me new one in about 3 days. I repaired first one (rip was about a foot long). Now I have two covers. The new one is stored until the first one turns to shreads in a few years.
We live on the SC/NC border. Best state parks and national forests anywhere. Great place to live!
Not sure if cover does a whole lot (we have full body paint), but it makes me feel like my baby is safe.