?Help!! I have recently purchased an O'Day 23. I need information on how the running rigging on the main is configured? There is no track for the main sheets. On the port side is a single pulley and cam cleat on the starbord side the is a single pulley and there is a small double block on the boom. There is a Cunningham boom vang and there are Cunningham attachments on the mast and boom and several cleats on the boom itself. Don't remember the configuration of the out haul on the mast. Also what is the function of a block attached to the front of the mast below the spreaders and two rings near the base of the mast