Well, got mine ready to fly, but the weather didn't cooperate. It has an OS 50 sx on the front with a tru-turn spinner and 11x7 APC (12x4 wouldn't fit my spinner), and 4 cell 1450 NiMH pack over the tank against the firewall. No extra weight needed for balance. The balance goes nose down at 4 9/16 and tail down at 4 1/2. I may not get to fly it for two weeks now (going to top gun this weekend), but am looking forward to it from everyones reports here!