Very nice plane and scheme, I really like it.

Two rudders mean two separate servos per rudder? So you will have three conditions for the rudder which means two for left and right KE and one for normal flight? Have you tested the split rudder on knife edge? How does it work really? How does the moving rudder produce lift in KE if there is not airflow under it due to the non moving rudder??

Also can you use the two rudders deflected at equal angle in the downlines for break?

Looking forward to your answers,
Nikos