Instructions
Ensure that the RC airplane's gyro has been installed according to the manufacturer's instructions.
Adjust the gyro's sensitivity level for your flight plan. A gyro that is too sensitive will wag. If you are doing aerobatics, choose a low setting or it will fight you. Set the gyro's sensitivity level by moving the gyro's control stick on its transmitter to the appropriate level.
Test the gyro's sensitivity setting. Fly the RC plane. If you sense the gyro is over correcting, lower the gyro's sensitivity level. If the RC plane's flight is too wobbly, increase the gyro's sensitivity level.