Kamikazi
I don't recall saying I've had issues with duel servos. You're likely referring to prior comments from someone else but they're likely thinking more about the extra $150+ in servors that you usually don't even see on 30% planes.

Still your right regarding the size of the aileron. This is an 84" span, 1556 sq inch wing and the Aileron is about 1/3 of the wing. That's quite a step up from the .46 size plane and more aileron than on the average 35% bird. So we shouldn't be entirely surprised that they went with two 100 oz/in servos. You could make a single servo mount for a 333 oz/in servo but this needs more structure which is more weight in exchange for redundancy and response of two servos.

I'll likely try out 4 of the new Hitec 7985 MGs on the wings, 2 of the 7965s MG on the elevators that I'll likely configure as Elevons and a 7955 TG on the Rudder.