Have you considered a bigger, heavier battery? I have this plane with an OS46FX and have really enjoyed it. To balance it I added a second battery and put both to the rear as far as I could get them. I used two balsa pieces glued across and above them to hold them in place. Now I have 1200 mah of battery and can fly the heck out of this plane without worry. I used a Y to connect both batteries to the switch, but have to charge them separately.