It’s long been a popular tactic to incorporate S turns into a trolling pattern. By doing this, more water is covered on each pass, and the turning motion changes the speeds at which the lures are running. As the boat changes direction, outside lures speed up, and inside ones slow down. This can and often does trigger bites that would not otherwise occur. It’s a tactic that can be very productive any time trolling crankbaits with boards is called for, but it seems especially so from post spawn through the summer months when large numbers of walleyes are found roaming the open basin areas of many lakes.