The C8 actually does steer on the ground with rudder and no tailwheel. Does pretty well in grass, and not bad on pavement.

Suffice it to say, the plane can be controlled in the air if you ignore the rudder.

With the semi-symmetrical wing and flat ailerons, it's kind of tough getting them lined up properly. Ideally they should be lined up with an imaginary line running from the middle of the trailing edge to the point where the airfoil transitions from upper to lower surface on the leading edge. It might not be a bad idea to go with flaperons so you can trim the aileron incedence in the air with the flap channel knob on your radio.

Thanks for mentioning that aileron incedence thing. I just might have to check mine out and see.