Nigel1 is entirely correct.
Once the "Give Way Vessel" all ways the "Give Way Vessel" until all chance of a collision
"Nothing in the Rules allows a vessel to use the rules to disadvantage another vessel".
Interesting discussion topic though.
If you are on port tack and there is a risk of collision with a vessel on starboard tack, what are your choices?
a) Bear away and pass astern
b) Round up, go head
until she is passed and clear.
c) Tack under her, and hope that she is intimidated enough to tack off to port.
d) Tack under her, and then shout "Windward!" whilst trying to Luff her.
a = best option under normal circumstance, least risk of collision and it should be obvious to the other vessel the the action you are tacking is clearly to avoid her.
b = Probably the worst option, to easy to fall off onto the "Wrong" tack, not obvious to the other vessel that the action you are taking is to avoid her.
c = equal worst option, only viable if you have no choice but to intimidate her.
d = a common but poor choice, as you started off as the "Give Way Vessel" you will remain the "Give Way Vessel" until all chance of a collision is passed.
Just because you have forced the other vessel in to the "Windward" position does not mean that you are no longer the "Give Way Vessel".
Rules are fun arn't they?