Two topics here: DATES and GAME TYPE:
DATESCalmacil has suggested that we look at other dates to avoid tournaments at WHW and I'm seeking feedback on this here. For information, you can see the WHW calendar online here:
http://www.games-workshop.com/gws/content/article.jsp?categoryId=3500001&aId=14300120aThere's nothing in November though December is largely free.
My preference is to just get on with it as people seem to be free on the 17th but it can be changed easy enough if people want to move this to December. If we do change it I'll likely go on the 17th anyway as I've got the pass-out already and see if I can get another for a later date!
GAME TYPEI don't know much about large games but my imagination tells me that they're likely to be large sprawling affairs that take ages (due to people chatting which is no bad thing). I can only see one of these happening in a day if we decide to do that. I'd estimate that the game would take at least twice as long as a single-player 2000 point game (whenever I've read about big games online they've always taken a day or so and often they've remained unfinished).
My reservation about playing one big game is that it may leave some people with relatively little to do once their armies get smashed. Also, those who are quick to play will have to wait for others to get their bit done.
Table shape seems to be the big issue really (and the deciding factor in my mind): I think Calmacil is right that a very long table wouldn't be conducive to this kind of thing (essentially people would end up playing small games against the person opposite with other people next to them on each side. If we change the date and can get a day with more space for maneouver we could be able to move the table about to avoid this.
I'm likely being over-cautious here but the tried-and-tested tournament style (but friendly) multi-game format seems almost guaranteed to work while the big game
could be a big win but might not. I'm no gambler me, as you'll see when I work to manage the odds during my games!