I have one that's awesome on the BME105! It has gob's of vertical and on a Mejlik 27x10 it rockets out of torque rolls. I'll be flying it at the Midwest airshow this weekend. The DA has more power (28x10) but more weight too. I'm at 23lbs. with 2 receivers and 1700mah packs. 2 servo's are mounted behind the tube for rudder as are the receivers and batteries. Carbon gear, carbon wing and tail tubes (I bent the other one's, hitting the pop-up's too hard). Balance is perfect, maybe a hair on the tail heavy side. I saw one flying in Tuscon with the ZDZ80 on pipe and it was super quiet with plenty of power. I don't know how the 3D was since the pilot didn't fly it that way. I'm inclined to believe that you could fly 3D with a 4.2 single on it.

Chris