Hmm, looks like I may be doing a 5955TG on rudder then. When you say batteries under pilot, do you mean in the area behind the canopy? For my 28% Edge, they're currently mounted behind where the pilot would be under the turtle deck. I haven't balanced it yet, but I have the throttle and choke servos with the ignition battery more or less over the CG. Should be pretty easy to balance.