Hello Group! I am trying to adapt an old kayak of mine to a sailing rig. I have fallen in love with Rushton's batwing style (as seen of Vesper) that has battens/yards/spars laced to the sail at the luff and somehow attached to the projecting spars beyond the leach. It looks like a triangle is formed with ties to accomplish this. I was curious if anyone knows how these connections are made (photos would really help) or if I could be pointed in the general direction of good detailed sail plans (similar to Vesper's sail). Thanks!