I have ben pulling small cranks for saugeye and crappie here in s ohio for many years Started out going after saugeye which are usually found on drop-offs and humps. Found out when I make my turns, I would pick crappie on the flats or adj. deeper water. I use a 75 hp engine, run about 2.1 mph. Saw a great article about trolling deeper water during summer. Sound like a good summer project.