I was sick of my boat cover rubbing on my gel coat, and the vinyl cover leaving marks that i would have to buff out. I started using towels to put around the lip of the cover, but that got tedious. I used a vented car dust cover that was long enough, and draped it over my boat anytime it was parked in the garage to keep the dust off of it. Dawned on me, and works great as it's a super soft fabric to keep the cover from rubbing on the gel. I rarely rarely rarely will tow with my cover on because of the rub, but now I can put the dust cover on, and then the cover over that and know that the soft fabric from the cover is protecting the boat and not rubbing. Still don't use the cover to tow unless it's a very far distance or going to rain pretty hard. Also as an FYI I put thick wool socks over the trolling motor prop to protect both covers.