I fished Summit Lake this week and noticed what looked like mixing going on at mid water column in 38 ft of open water. Saw a lot of debris at about 20-22 ft. No change in the water color yet. Also they dropped the lake level 3 ft. in a week! I didn't know if they do this annually at Summit or not? It really screwed up fishing for me. My favorite weed line on a cove point was exposed to the cold snap and the weeds flattened out on the bottom. Of course the fish scattered all over the lake and got lockjaw.