Well guys I was way too nose heavy(Well kind of) I'am now half an inch behind the wing tube. I will fly her tommorow and find out. I took out all of the weight in the front which = 1 pound of lead and I extended the motor out another quarter inch to make it 1 1/2 inches out from the motor box. The bme 100 with pipes must be heavier than the zdz 80 with the down pipe. My sukhoi weights 25 pounds even now.