I fish Thomas Hill almost every weekend. I caught 7 out on the brush piles in 2.5 hours of fishing on 9/23 and then added another 5 from our dock in MAC's cove. I did not go fishing that evening, so I wasn't able to catch the limit, but there was 3.5 hours of fishing to catch 12 eating size fish.
I will note that I caught ALOT of 6-7 inch crappie last weekend which was abnormal.
Where are you fishing at?