I am back again with a question on a 1977 Magnum tri hull 15 foot open bow. I am trying to replace the stringers which the floor and stringers are rotten. I was going to replace up to the open bow part but the further I go the worse the wood is. So thinking now I need to do it right . There is a rubber rub rail where the top and bottom come together but the rubber is hard and brittle , when I try to remove it , it cracks. I can't find any information on this boat on the net or in any books. How is the rub rail connected to the boat? Screws or pop rivets and how do I successfully remove the rubber to use it again? I am thinking after all this is done the boat will outlast me so I plan on a little more than a first aid job but then not back to a show boat either. I have all the time and half the money for a complete restore job to show room condition. Attached are the pics when I got the boat and after getting to the rotten wood. So now I need help getting the top off.