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That sounds good. On the official server, or on Kupo's? The official one is sort of laggy :s. also, can I know the specific time for you, so I know when is a good time?
Um, Go10, you still there? XD I see you've changed your picture, and I don't mean to rush, but I'd really like to get started ;.; contact or VM me when you can.
A check does NOT need to switch in. If I use your definition of check, then there would be a very slim difference between a check and counter. Also, yes, a revenge killer is considered as a check.
Regarding your question, I don't think December will be included for the Potato, but we will definitely not ignore the contributions done during it. I might get it to start from January 1st, though.