I fish the Dix and KY quite often because my farm is just on top of the palisades near Highbridge. As far as I know, you have picked the best places. You will not graph many fish in the channels unless they are catfish or perch. All my bass come from the rocky banks, creek bars and wood. You are right the early mornings are the best unless you fish the bars and rocks at night. You can boat some nice SM on fullmoon nights on top water and jigs on the rocks and bars. I might add that the river gets really foggy at night so you must be very careful at night. You can really get turned around in heavy fog.