OK, I've got it. Is each round supposed to be 4 hours?
Yes, in competition we play them as one-slot events at Gen Con, which are 4 hours. Actually, maybe they were 5 hours at Gen Con 2009...I sorta vaguely remember thinking we gave them more time. Every other competition module before that was 4 hours, though. Let me check my records...but definitely either 4 or 5 hours. Note that many teams don't actually finish an entire level in that time, but some do. If you score the rounds, you can compare them to the actual scores of other teams at the con:http://www.goodman-games.com/tourney-results-DCC08.html