my rudder is slightly oversized as well and will back to the right everytime!!!!! If you have a large area of water i can eventually get her to back straight. To back to the port when docking you basically have to walk the boat in , forward with a little throttle wheel hard right, then reverse and wheel left. If you are doing this against an incoming tide with the pier on your port you will be in for a treat. Just dont try showing off your docking skills with this scenerio! But hey- once you can run a single screw inboard with proficiency you can run any boat out there.
