How It's Done for Walleyes: In summer, lake walleyes either hold near deep structure or cruise as scattered schools across deep flats and basins while following baitfish. To get these fish, use a loop-to-loop connection to add about 10 feet of 10-pound-test clear mono or fluorocarbon as a leader. Then tie on a swimming-minnow plug, crankbait, or trolling spoon. Running the boat at about 1.5 to 2 mph, pay out enough line to reach your desired trolling depth. If your sonar is marking fish at 25 feet, for example, let out about 3.5 colors. Put your rods in holders so the rods extend out from the sides of the boat and low to the water. That way, rod flex will cushion the shock of a strike.