Attaching the mainsail
The tack is attached to the mast, to the eye just aft of the reefing hook. You do not have a downhaul, but you should have an outhaul. Without this, you cannot control the tension of the sail foot (in the boom track). The outhaul attaches to the clew of the sail, then runs forward in the boom to a sheave and jam cleat (both in the forward part of the boom). What part of the sail is loose, the luff or the foot?I wonder about the tension of your main halyard and the dimension of your luff. If your luff is too tall for the mast, you will never get a tight fit. If your halyard is slack, your sail will not be raised completely. If you have a digital camera, take some pictures and mail them to me. Otherwise, I could take some pictures of the rigging next time I am out and send them to you.What year is your boat? Are you still using the Neil Pryde sails?Chris HarawayS/V CassiopeiaLake Pleasant, AZcharaway@cox.net