doable....but, one thing that I think gets overlooked is the possible mental "strain" put on a hike when you are forced to maintain a rigid pace or schedule. (Even if it's to get to the next town before the PO closes before the weekend).That becomes more of a forced march than a hike. If I were starting that late, I would look at flipping to give myself the luxury of not having a schedule. I spent plenty of zero's, not because I was tired but I wanted to "soak up" the experience. I treated my hike like it was a "once in a lifetime" opportunity. Not saying i won't ever do another AT thru hike again but I'm not sure that I will either.