I posted this elsewhere on this site, will repeat…
Update. After autopilot installation, it was apparent to me that a yaw damper was necessary. SteinAir installed a yaw damper, with FAA field approval, and unfortunately the Garmin unit was not up to the task. The servo was not strong enough to adjust for the torque on the Meyers. The yaw damper has since been uninstalled.
The spring tension in the rudder system was increased, the rudder bias in the rigging was adjusted, and now N2902T flies ball center in level flight. Right rudder is required right after takeoff and in initial climb.
Keep the ball centered!