JohnF - here is my response to you post in the Advent Calendar 2018 Fundraiser thread.
With perhaps one exception the Advent Calendar Event has been run, successfully in my opinion, with a starting date of in and around the end of October/beginning of November.
I see no reason to change that but I would be happy to cancel my post and let you run this year's event from the middle of November.
On and for the record.......
Don't take this the wrong way, but it's still October
I can assure you that I took it in
exactly the way you had intended