I recently hiked a section of the AT in Tenn/NC. I had a great time. I would recommend to all backpackers to vette the folks to which they are backpacking with. i am returning again in the spring for another section hike, with seasoned hikers, the last trip one of the group had a meltdown and jeopardized the trip! I am looking for advice for a 100 mile section with moderate elevation changes, please advise.