Can anyone tell me what days in Dec end up being "unstacked"? I assume the 25th, and maybe the 24th and 26th... Does anyone remember from previous years what other days have issues? Maybe the 31st?

In Nov, I was surprised that only 24th (Thanksgiving) and 25th got unstacked in my category, and the furthest the unstack went was 9% up the line-holders list. I had expected maybe 40%, and a lot more days around the holiday.

Thanks for any thoughts on this!