Preliminary balancing shows tail heavy, pretty bad too. Thats with the batteries pushed forward next to the tank tray. That was with a fairly small ignition battery ( 6v 1650 nimh) I intend on using a larger one but at this point it would have to be a real heavy ignition battery to balance. I think I'll contact Smartfly and see if I can exchange these 2300 a123 batts for larger ones.

David, I think that smoke system is the difference in the balance between our planes.