I have a Morgan 34 which was built in 1968. The cable on the centerboard was slack so I had the boat hauled. They discovered that the centerboard had broken. I was in rough weather two weeks ago but can''t believe that the bronze 260 pound centerboard would break. It is the original. I need help to find another centerboard or where would I go to get another new or used--pros and cons on new and used. Is it safe to sail without one.