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I am teaching the game to a ton of new people this week. I was going to be playing with only 3 others and planned to join in myself, but now that we're up to 8 players including me, I figured the game would be more fun if I keep things moving as a non-player Arkham Master. Staying out of the game as a player and act as rules guardian, referee for things 1st player normally resolves, reader of cards, and general knowledge base.
How can I keep the game running smoothly? With only one experienced investigator (has played a single game a month ago) still in the group. We have either 4.5 hours or if we're lucky, 6 hours to play the game in, and I think we all know that even with an experienced group 6 hours can be too short.
I'm playing Vanilla, and they're up against Yig, so as a light sleeper, that should make it easier. What techniques, homerules, and other adjustments have you developed to counter game-length creep?