Finally got and mounted a 10" elliptical rudder from Think, what an absolutely massive difference. Infinitely more control on waves, and it has a much better rudder yolk design. Smooth as butter and super responsive now. And it's funny, side by side the Think rudder and the rudder that came with my boat (not sure if it was stock) don't look that different, but once I got it in the water I could see that they were thoroughly different.