Raymarine ST3000 Owner's Handbook Manual page 65

60
2. Refer to the calibration menu diagram in Chapter 6: Adjusting
3. Repeat the test until you achieve crisp course changes with no
You should set the rudder gain to the lowest setting consistent with
accurate course keeping. This will minimize drive movements and
reduce power consumption and wear and tear.
ST3000 Wheel Drive Autopilot - Owner's Handbook
Wheel Pilot Settings, for instructions on how to adjust the rudder
gain setting.
more than 5° of overshoot.