I may have done a little bit of overkill, but I'm using a dual elevator setup, and each elevator servo is a JR S821, which are 72 oz in torque at 4.9, which is what I'm running, pull pull rudder with an older JR 4721, which is 120 oz in torque, micro on the throttle, and dual aileron servos, both JR S821 servos. I'm using a 4.8v 2300Mah battery. Thats my only 4.8 pack I have, all my other planes have 6v, which I'll be switching to shortly.