I don't fish Cumberland at all with the fly for you can't drag me away from Dale but if I did right now with as cold as the water is, I would be on the main lake throwing it up against the most straight up and down walls as I could find. Usually later in the winter when the water temps get in the lower 40's this is where you will find the fish stacked and with the extreme cold winter we have had so far the water temps are there now. Learned a valuable lesson last weekend at Dale to focus on the water temps to find the fish and not the date on the calendar. Hope this helps, elnut