I would say that your drawing shows you something important, the fish are deeper in the winter and move shallower to spawn. At Harris this would mean some move short distances from the creek channels into the near by coves while others make a longer migration up to the heads of the larger coves. Keep reading reports where folks mention water depths and keep those in mind as well as start where you last caught them and keep moving shallower if you aren't getting results. This can mean moving laterally into the smaller coves or moving up the lake into the larger ones.