I have a Futaba 6EXAP radio. According to the directions to mix alierons and flaps, I plug the left aileron in channel 1 and the right alieron in channel 6 then set the percentage I want. But when I move the alieron lever on my radio, both alierons move together either up or down in the same direction. Even when turn on the flaps switch (6 on my radio ) they still both move together. What am I doing wrong. Thanks for any help