RE: GP 1/3 Pitts arf
I balanced in the middle of the recommended and did not have to add any tail or front weight. (Using the Quadra 52) My two batteries are under the cockpit (as well as the RX and the ignition battery up by the gas tanks. (Like to keep them away from the radio equipment.) I have not played with moving the CG around for better landings. Maybe someone else has some input about that.
Sheldon