If I had to choose a limited amount of days, I would choose the last of the season. A lot of animals are killed on opening day, but by the end of the season they are more settled down and with little pressure. Success comes down more to skill than earlier, when it seems there needs to be more...
Great video! I've always left the meat out to air (across sage brush, over pine boughs, rocks, etc...) while boning the animal out. I put the meat, after some time to cool, in pillow cases. They go into the pack, which is lined with a white garbage bag. I've packed quite a few loads of meat...