Used to cruise in a 34' Tollycraft Sedan with twin Crusaders and a single fixed rudder.
Easiest boat on earth to maneuver, especially dockside!
You'll learn never try to steer with the rudder near the docks,
the engine throttles control all.
I wonder how twin outdrives would react using the engine throttle controls instead of steering.
Wouldn't it be quite similar at idle speeds?