I'd do it from below
Dale -I would try suspending the boat - do it right, please don't get smushed (insert applicable legal disclaimer here) - and using a pressure washer to blow any gook (note use of technical marine term)that might be holding the board up.If that doesn't work you may have a swollen board from water getting into it. Unlikely since the boat has been out of the water for years, but you never know. Read the article on the link below for more info.Justin - O'day Owners' Web