I ran the loop in 3:39:47, including a trip up the tower; it is a great route. The difference between the LT/AT and the West Ridge trail is striking, the West Ridge is very primitive by comparison, with thick foliage right now. It is difficult to follow at times. Trying to find the trail around the shelter is quite hard, you need to go around the back of the shelter and then down and to the left. The fact that the route is so runnable makes it challenging towards the end; there are no hiking breaks.
3h 39m 47s