just thought I'd throw this out there, it is possible to have too much downforce...
hehe... Just like with tires, power, and lightness: The more aero the better. On slower tracks you can always trim out the wing to a low AOA.
I am always looking at the rules and running the largest chord / widest wing / mounted as high as allowed. Them trim it out to match the max allowed front aero and/or the particular track.
Can't wait to see the final weight of this one. Lightweight S550s are possible.