I think you lose some performance on any boomless sail, unless you can pull down hard right where you need to. Making the sails rather flat might help. Bernd has said that furling sails work well when the draft is only 4 per cent of the chord, if I remember correctly. ?And just to be clear, ?the Voyager was originally drawn with a wishbone boom attached with a gooseneck to the lowest cross member of the A.
