I think that was me! Thank you again, you saved us that night. If I remember correctly you had a mooring over at Clark's?
Class rules permit vangs however the geometry of anchoring it to the mast is poor. There is a history in the class of attempts at vangs however with the length of the boom there is also a history of snapping booms. For a few years the class permitted aluminum booms and masts (due to difficulty sourcing wooden ones) and I believe the aluminum booms took the load better. Presently, most of us are on the lookout for a fat guy who will sit in the main on the downwind legs and trust us not to jibe...