In a similar thing I participated in some time ago you had one week to finish your piece and send it to the organizer, and he made a thread for every pair with a poll for everyone to vote, which was open for one week. I think this week was really important to rest your mind a little, and to get a clear head again. And I guess in our case here the judges won't mind some time to write their commentary as well.
Anyway, one thing that's definitely missing in the chart is the third place (though I suppose we will have some sort of an extra podium image for the winners). Usually the two who drop out in the semi-final fight for third place during the final round. In this thing I took part in they even gave the finalists an extra week, so the third rank battle did not coincide with the final round.