I do not usually do more than 13 or so miles in a day, but am considering hiking the 21 miles between Icewater Springs shelter to Cosby Knob shelter in the Smokies in 1 day. Has anyone done this section in 1 day before? I am trying to cut a day out of my Smokies AT section hike and was originally planning on just going from Icewater to Tricorner (13 miles), but thinking about going all the way to Cosby Knob (8 more miles). Next day will be small as well (only about 8 miles to hike out to my shuttle at Davenport Gap)