ORIGINAL: Kamikazi
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.
I'm one of those people that are complaining about two servos per wing - really a un-needed complication. A guy was at our field yesterday with a Hanger 9 Sukoi, 80cc. Much bigger than the Reactor 50cc, one servo per wing, and definitely a 3D design with large ailerons.
If the rudder can make do with a single servo then so can each aileron. I've seen a number of 50cc and large planes that have two rudder servos but only a single servo per wing.
I may still buy the Reactor 50cc, but I will wait for the reviews and only buy if it is the best in class. So far it seems more like the Giant U-Can-Do, a scaled up version of a great plane that also had some poor design decisions.