I really appreciate the advice you all are throwing my way on this plane.So far I have incorperated some things you have suggested . If this plane has plenty of vertical then I have no problem with a saito 125. The main concern I had was having to add lead. If things are working well with the 2700 mah battery .That is the route I will take, plus saving $50 bucks. I talked to the local hobby shop and I was concerened about the high price of digital servos and he recommened High Tech hs645's gives over 133 oz torque at 6volts. I think I will go this route and still run a 2500 mah battery.