Your readers might get a kick out of this. The picture is of Steve Dashew sailing his C-Class catamaran in SoCal in 1968 with a double skin, asymmetrically trimmed mainsail- not miles different from the next Americas Cup mainsail configuration. Sometimes we take ourselves too seriously. The Herreshoffs patented most of the good ideas in the early 1900s and the C-Class sailors made a lot of them work. Today we have better funding, better materials and better tools for modeling, but not necessarily better ideas. – Anarchist Dan.