I've seen rubber or nylon (not sure the exact composition) strips that are designed for motorboats and jet skis. They are grooved longitudinally and adhesive-backed. The guy at the fibreglass shop tried to get me to put them on my 5.O, but I was too interested in racing. He insisted that they would not make any difference as far as sailing, but I had my doubts. They might be just the thing for a 16 that is sailed off (and onto) the beach all the time.