I got both of the tillers glued up. The curve between the two is identical, but I experienced about an inch and a half of spring back when I released the clamps. This shouldn't be a problem, though. The tillers are curved to enable Ackerman Differential Steering. Basically, like a car, the other hull will need to travel faster than the inner hull when turning, and the differential steering allows the rudders to turn at seperate degrees. The inner rudder will be turned less and the outer more in order for the outer hull to spin around faster and catch up. I have also started up the installation of the beam compression struts. The tillers will undergo extensive sanding and shaping in a short while. Here are some pictures.