A few quick tips for fishing wingdams:
1. Troll crankbaits in front of or on top of wingdams. You might catch fish behind the wingdam but you are pulling the fish out of their ambush spots. One or two passes and the wingdam is pretty messed up with fish running every which way. Its ok to troll right on top of the fish, they don’t mind, but behind the wingdam confuses them. That’s just my thoughts, if your catching fish trolling behind, then keep on doing it. Use a shallow diver on top and a medium diver in front. Most all wingdams hold fish, its just a matter of figuring out where they lay and when they feed there.
2. Troll crawler/spinner-rigs around wingdams. Even a bead and a minnow, leech or crawler will work. Use about 1oz weights.
3. Jigs work great around wingdams. I like to use a 1/2 oz with half a crawler or leech. Find fish on top, in front and off the ends of wingdams.
4. Cast wingdams works great if you know where to anchor or is you use an electric motor. This is probably the easiest way to catch aggressive fish. Just fish a lot of wingdams.
You can find more detailed Walleye tips on wingdam fishing in my “Big Walleye Big Water” DVD.