I have a full season under my belt with this airplane and have had no servo related problems with it.

Elevator: Hitec HS-605
Rudder: Hitec HS-605
Throttle: Hitec HS-422
Airlons: (2) Hitech HS-425s

Battery -- generic NIMH 1500mah, with Hitec switch.

I have also had no problems with the standard tail wheel that came with the package.

DO: pin CA hinges (all I did was use a trimmed common pin and a drop of CA for each hinge half)
DO: re-enforce main landing gear block (you need to strengthen the block itself, not just where it is mounted to the fuselage)
DO: adjust CG to specs.
DO: setup QUAD flaps -- this plane is king with CROW