I personally do not long line in the fall but have heard of folks doing it. It should be worth a try. In the fall I spider rig and cast jigs and shoot jigs under docks. You may want to try going across the river and fish the Rabbit Branch and Coosa Island areas, there are lots of docks over there plus lots of house boats that you can fish around. I normally catch the fish deeper in the fall most of the time but have caught them shallow a few times. Let us know how it turns out for you.