i say what sorrow and mom and others are saying, remove the map from the rotation but only have an admin make a vote to go to it, if it succeeds, play, if it doesnt, dont.
but instead of a vote, why not have a specific time for it go to speed dom?
thats probably a really bad idea, with all the players from different time zones playing in the server (from europe to Hawaii)...but if you knew speed domination was gunna be played at 6 pm east, and you dont like it, then you just dont join.....go play zh for 30 mins and comeback.
seems kinda....whats the word im looking for...problematic....but just throwing an idea out there.