To be clear, I never said the right of way boat was REQUIRED to hail, it is a courtesey call and one I always make because I don't want to hit anyone, or be hit. You are a fool to assume a boat on port tack sees you and a bigger fool if you then hit him. Rule 14 clearly states that you will do everything in your power to avoid a collision, even if you are the ROW boat.
I agree... when in doubt I certainly yell "starboard" to make sure they see me- and in return like the heads up myself. Not required but in some circumstances I think it is good sportsmanship.
