Under the new policy, I would break them up. I love and trust my family, but no way would I want my cc on the line for all of them to show up to every meal.
That is a rather large group to keep together. I've been with 12, and it often feels like herding cats. For starters, someone always has to use the restroom or wants to get a snack. There's also always the issue of morning folks vs. late night folks. Unless your entire group is on the smae page with getting up at the same time and has similar energy/endurance levels- it's very hard to keep everyone together - even ofr one meal a day.
I'd certainly do no more than ONE TS meal per day. What might be better if you are unsure of the above- is to have each day's group meal be a QS meal, or make sure the TS loacation is a non-cc require one.
Let the sub groups decide on TS meals. - or if you REALLY want to do full group TS cc meals - spread the love - make each sub-group responsible for at least one meal (i.e - they put up cc.)