RE: Extreme Flight Jeremy Chinn Yak-55SPs build thread
I have used the 425 nylon gear servos without any problem so the 422 should be OK. The Futaba 3010 is also an inexpensive lightweight servo with a little more torque. They also seem quite a bit faster to me. Make sure you run either of these on 6 volts otherwise they are a little two slow for the fast reaction of these planes. The 625's would be a good setup. Fast and plenty of torque on 6 volts. You will never notice the few extra grams of servo or battery weight in these planes but you would really notice a weak, slow or poor centering servo. You set these up with 45+ degrees of travel on really large surfaces so a good fast servo is nice to have.