The best thing you can do to really improve performance, is set up the dual servos. Even with a y cable, you can get better throws without stressing the servo so much...

If you can upgrade to a better reciever...you can setup flapperons...i have mine setup for flapperons...talk about a plane that you can almost reach out and grab it flies so slow...If there was ever a plane that didnt need flaps, this is one...but man, they are cool to have on...especially on a short approach...you can come out of a dive at landing speed with them..