I would echo the above comment about core rot. My boat had extensive core rot as do many, if not most, boats of this vintage. It is a messy, expensive (West System, balsa core mat, roving, and cloth) job to replace the deck core and not for the faint of heart! If the decks feel soft under foot and you get a hollow sound when tapping around or if the stanchions move when you walk near them, there is core rot. Core rot under the steering pedestal is particularly critical.