I am all for experimentation Ebb, but I do think we should look at all innovation critically. The Constellation's rudder was designed for better helm control downwind in a 12 meter. And the straight bottom edge and crisp corners of the rudder helped reduce drag. It was also intrinsically designed with the keel to archive it's performance breakthroughs. I sort of think adding such a rudder to our boats is bending to fashion over practicality. The Cape Dory rudders were an attempt to keep the Alberg boats contemporary in an era of detached rudders and fin keels. Bet they sail windward not too different from our much older boats.