Knowing a little about a body of water can hurt more than help. For example, two years ago you caught three good fish in Slab Cove in late spring. Since the fish were three big crappie, you go back there and spend a lot of time. However, this is September, not April, so the fish are nowhere around.
If you go to the lake with an open mind, or force yourself on your home lake to forget about past fishing that did not take place in September, you can find more fish. Fish your strongest method but don’t overlook other tactics. Test-fish different water depths keeping in mind the normal fish movements for the season and the condition of the water. -TH