This is a question directed towards those building Ian Oughtred's Whilly Boat (i.e., Greg H.), or one of his similar double enders. On the plans is showed a cap over the centerboard trunk that is specifically "screwed, not glued". I was wondering what the rationale was, considering the piece below it is glued. In other words, if you were to unscrew it, all you would uncover is a piece of wood that is permantly glued into place and there would be no access to the centerboard or inside the trunk. Any thoughts?