Crazy R, take it from one crazy to another - but that bottom rudder fitting and support looks ... a little fragile. Hate to see you retire because of an annoying breakage there .,, because your boat will be quick.
yes, it looks fragile. the bottom and upper supports are basically same, there is also carbon fiber/plywood plate running full length of cassete on backside (flat side) of the rudder, But I agree, it is something need to be seen. it is a payoff of building ultralight boat, i doubt that the boat tops 110 lbs. If I break it, I'll make it stronger next time