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WhiteTower: You do know that Fencer recently added a different type of time control called Fischer's clock.
You can set it up for example so each player gets a "pool" of 24 hours to make their moves in. I would add in a BONUS of 6 hours or something so people are not caught while in bed - with maybe a top "pool" limit of 36 hours or something - which of course has no vacations or weekends, and should bring along a pretty fast game.