Bear,
In the instructions they tell you to mount the servos on their side with the bottom of the servo on the face of the rib. This way all that is sticking out is the servo arm, they actually tell you to cut the covering to let the servo arm hang out, kinda cheesy. No way to get at the servos once the wing is covered and I don't like the idea of cutting a slot in the covering to let the servo arm hang out. You mount the aileron servos into the wing then cover it and then cut the slot in the covering to let the arm hang out. Better off to build a box to mount the servos in and install them in the wing upside down, this would be a stronger more secure setup than the method in the instruction manual and allow access to the servos without having to cut the wing open to get at them. Other than this minor flaw it is an excellent kit to build, nice wood and instructions and it is an excellent flying plane. Might wanna also go for a aftermarket fiberglass cowl and wheel pants to replace the plastic ones that come with the kit.
Mike T.