I'd really like the Sixes too for pretty much all the same the reasons Matt mentioned above. Plus it would be a nice tradition for us to have

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But the main advantage of 4v4's during this time would be that it is nearing the holiday season and some players might still have exams, be away or have plans to on go on vacations and all that (like myself, so I've been thinking about our BLaZn numbers and how to organise things depending on when the Tourney starts and ends, though we should still be good for Sixes). So 4v4's could be an easier entry point for some teams IMO, but 6v6 feels more social and carefree for a starter comp. Maybe we can see how the sign-ups go and if every team roster looks big enough, ask how they feel about bumping it up to 6v6 again?