catboater. Somethings wrong. I've built 4 of these planes and the heaviest one weighed 6 lbs 2 ozs. I was able to trim the weight on each one with lighter tires and a mini servo on the throttle but NOTHING special. The last one I built weighed 5lbs 12ozs with a Saito 82. I use Hitec HS5625 on the elevators HS5645 on the rudder and HS645 on the ailerons. I do use carbon fiber pushrods because they are light and stiff, but I don't think you save much on weight over stock. Also, the CG is recommended all the way back to 6" and many guys are flying it there with absololutly no problems. This isn't like a Funtana where it becomes too tail heavy to land. It does just fine with a 6" CG but I perfer 5 5/8". It has less coupling and still 3Ds fine. Super airplane, I just can't imagine why yours is so heavy. Did you add stuff other than stock?
Thanks,
Barry