Yes, my historic longest hike day that took me 12.25 hours. "The bugs are eating me alive." This was 3rd of June 1975.
Here is a link to a Backpacker article about hiking to Fingerboard to see a pic (I have one somewhere, but I guess I have yet to digitize it). The floor was rock.
I climbed through Lemon Squeezer earlier that day.
Now, I hadn't planned to finish my AT on this trip since I hadn't planned on hiking so far each day. But at this Lean-to, I played with the idea.