I don't worry about sharp edges with our ADCO with TyVek cover. So what if there is a small hole in it? Its for protection from the intense Sun and Snow up here in the Rockies. I'm on my third year with this cover, and any holes are covered with Duct Tape. It worth the small work installing this cover, because in the Spring, I remove it and marvel at the clean and perfect paint and graphics that have been protected during the harsh Winters here.