If I understand you correctly, you are going to have a stab/elevator behind the wing as well as a stab/elevator in front? If so leave the flaps stationary on the wing. On the canard that I built that Dick Sarpolous designed, I have the moving surface on the back edge of the wing cut way down on movement. The forward moving surfaces have been cut down on control movement also. It is a fun plane to fly and will do the pattern when the engine/tank is set right. May have to get it out more often just to have fun. Another consideration I have just thought of is how much moving area are you going to have? I remember years ago as a teenager, I had a 1/2A combat wing called the Lil Omega that would not turn. My brother suggested that I double the size of the elevator. Boy what a difference that made. Anyway, have fun, DOC Holliday