I have an old Coronado 15 that we took out for the second time this weekend. We had the opportunity to capsize. I got very concerned. The boat when turtle, loss its rudder and after it was up right, very difficult to get back in the boat. I am assuming that this happened because the mast filled with water. Is there a good way of preventing going turtle? I thought of filling the mast with foam and sealing all the fittings. Is there a good product on the market to assist one getting back in the boat?