I wonder if you could have a canard foil with a very high lift flap such as a fowler for the elevator, and at the same time be able to greatly reduce it's angle of attack so that you could get more AOA to the back wing and thus a higher overall CLmax, Odd things happen. Some Q-2/200 use what they call a reflexor. It's a device that raises or lowers the ailerons together. It was an early fix for the pitching moment due to contaminated GU canards, mostly rain. The guys that use them generally report lower landing speeds with the reflexor in the UP position - or what one would think is less lift from the main wing. Run the 1212 airfoil through something like Xfoil with a 5 deg up flap and it actually will develop a higher CL. Intuition doesn't always work.