I don't understand why it flies so much better. I took it apart and put it the step washers the way they are supposed to be. It started to yo-yo again. I then put them on with the steps out and it flies fine. It don't seem to have nowhere near the headspeed it had. That is why i thought maybe the motor was bad. I had a spare so i tried it and it doesn't help anything. Could i have a problem with the 3-1?