Im glad your maiden went well, i have an os 61fx with a 12x6.... i cut the metal bar in the back with a dremel and installed dual elevator servos, and did a pull pull for the rudder, there is a perfect spot for it in the fuse....all of that helped counter the extra weight if the 61.

Its a little snappy when elevator is applied abruptly on high rates but other than that its a nice little plane to fly.. this plane has helped my learn how to lock on in knife edge flight, i learned how to counter the coupling issues it has with out mixing