Be careful when towing the boat with a cover on it , due mainly to the fact if the cover is loose or can rub anywhere it will leave scuff marks on the surface finish of the boat . And it will also fray the fabric and destroy the cover . A tight fitting custom made cover is the go , like you may have seen fitted to some ski boats with big dollar glamour work . Personal for the money I would be content with showing off my boat and spending the cash on something you can use , and get a cheaper cover for when your pride and joy is parked in the shed to protect it from dust and insects and the neighbors cat which will get the short shunt when I catch it .