I'd kinda like to put in my 2 cents worth, to Dorado and Flipper, We target walleye with bottom bouncers. We troll between 1.2 to 1.8 mph, tie our harnesses and Dorado, to help in the hanging up department, watch your depth finder. Going from deep to shallow, if you don't pull up fast, you will get hung up every time. You can follow the bottom from shallow to deep fairly effectively though. We also use 3 or 4 oz bottom bouncers, not really necessary in May but we catch walleye most of the year Sept. thru Nov. being especially productive, but also hard work because they go progressively deeper, we've caught them 40, 50, 60 ft and deeper. never had 80 to 100 walleye days, but 30 to 40 per day on many trips. We usually go once a month 3 days per trip all year long except not planning to in July or August this year. As far as nightcrawlers, my wife only uses them, but I will use a gulp crawler, some other brands too, along with a real one, or two crawlers. As Fipper notes you will catch every thing in the lake too. Last month I caught a 2lb crappie,although crappie are rare, but bluegill, catfish and striper are common. We use a 2 hook harness and when bluegill won't leave you alone, we use a piece of nightcrawler instead of a full one or in conjunction with a full one. Hope this helps a little. Last year in April and May everyone at the cleaning station had a bunch of walleye no matter what method they were using which makes our method not the most effective but the rest of the year we generally do pretty good