02-27-08 06:31 PM - Post#86454 In response to Mike Mas
Make sure you allow the gyro to complete its boot up. Don't move or bump the heli once you connect the battery pack up until you see the LED on the gyro light up. If you bump it just unplug and start over.
If you bump the gyro while it boots up you will see strange t/r servo movements. The t/r servo will go to full throw on its own rather quickly. No subtrim or rudder trim will fix that. So just reboot it and you will see a more neutralized slower creeping t/r servo.
As Mike pointed out with Heading Hold gyros it is normal for the servo to creep a little until it reaches the end of travel while you have the heli on the bench. It will not be this way in the air. The stock TX offers 2 different gain values as you flip the switch. From the factory both put the GYRO in HH mode so don't be alarmed if you see the t/r still creep no matter what position that switch is in. One is just a little less gain.