This is a good report on fishing for browns during the post spawn season on the South Holston provided by Trout University friend Justin Shroyer of The Trophy Water Guide Service. in Boone, NC. It seems that Justin managed to get a fishing trip to the SoHo just a few days ago and was most successful with the Blue Winged Olive nymphs while the browns avoided the BWO duns. Also, notice the use of long leaders.
Here is Justin's own words: Today was the first day in a long while that they cut off the generations on the South Hoslton. As the water dropped we began hitting some prime riffles and slots that were surely holding some nice post spawn brown trout. Following the spawn browns will stack in riffles feeding heavily on blue wing olive nymphs, scuds, and midge larva. This bite will occur in spurts and coincide with the hatch. When the bugs aren’t coming off, post spawn browns will lay docile conserving their energy for the hatch. Why feed when there isn’t anything to eat?