I have an Hunter 18.5 and this year its been slipped at the municipal marina on the upper chesapeake bay. Some of the boats here say in the water year round and I'm considering keeping mine on the water over the winter and saving the aprox $700 to hall it out and keep it in a marina over the winter as I have no place to store it out of the water on the trailer at my home. I've been here since 1998 and we've never had the bay freeze up here that I can remember. Are there and problems with leaving a small sailboat in the water all winter ?