30-60 fow? Now let me start by saying i don't fish kentucky lake, i am from MS, but bro i think your trying to fish way to deep. Maybe some local gurus up there can chime in and help you out. I fish a lot in the winter and the deepest i've fished is about 25 feet deep. I know they can be caught deeper but not likely where i am fishing. I also try my dangdest to find calm or slack water with very little current. Bridge collumns can be good at times more than likely these fish will be suspended. If i were you i would pay attention to my electronics and try and locate some crappie in between 12-20 fow. Just my opinion,its free so it may be worth what your paying for it.