I havent had done it much but when you troll for walleyes your crankbait must be bumping the bottom the whole time! Troll every point you see! We use to troll Thunderbird alot for saugeye and crappie in May and June! The crappie were more depth specific not touching the bottom, but the saugeye you were bumping all the time! Speed and depth is very important! EB