I personally don't care, as I don't switch sides. I think the 12 Hour does add more to the "SPY!" comment than the 1 Hour did, as many squads do change teams. If more log on and end up saying, "We're fighting Knights", but two guys had switched to Rooks a couple hours earlier, you end up w/ 2 guys on another team with the rest of the squad on another team and absolutely nothing they can do about it. I do think that 12 hours is a bit long, perhaps a maximum number of switches a day rather than a time limit could be imposed?