When unberthing from a pier with a strong onshore wind or current pinning the vessel firmly against the dock, what is the most effective seamanship maneuver to depart cleanly without scraping the hull?

1. Springing off the stern using an after bow spring (spring de proa): place a heavy fender at the bow, power slowly ahead against the spring with rudder turned toward the dock to swing the stern wide out, then reverse clear
2. Applying full forward throttle with the rudder centered and all lines cast off simultaneously
3. Pushing the boat off manually with wooden boat hooks while revving the engine in neutral
4. Reversing at maximum speed with the stern line secured tightly to the pier cleat