You guys that are complaining about the two wing servos may not have an appreciation for just how big those ailerons are. I have a Bling 3D which also has monster ailerons and two servos for each. I was worried about servo matching at first also, but as it turned out, hand matching them worked out just fine.
One thing to watch out for is power distribution. Severe voltage sags are possible with a gang of high torque servos pushing those huge control surfaces around. A power box of some kind is really a necessity.