Ok I bought three piper cubs 2 are exeed piper j3 cubs on 1 of then the Elevator wont work it seems to be the channel 2 on the transmitter. it will be all one way and will change when i reverse the switch but nothing from the stick.the other is fine. now my dynam piper j3 cub my ailerons are doing nothing. and of course the instructions leave alot to be desired.