I did the loop in November 2006. It was the first time I ever did a 20 mile day or hiked in trail runners vs boots (I was just making the transition to UL). I did the trail clockwise from the parking lot at the northern outlet for Fort Valley, and took around 3 days (3pm on Thursday to 4 pm on Sunday).
Water was hard to find up on the ridges, especially on the western ridge (I had to go down the road that crosses the middle of the ridge, fill up from a stream, and dry camp on the ridge-top on the third night).
My overriding memory from the trip is the agony in my feet from the horrible rocky trail coming down from the overlook in the last 3-4 miles. Still, it was a great experience - my first real fast-and-light trip, and I remember running into some mountain bikers who saw my GG Whisper pack and said I reminded them of Survivorman.