In the Great Lakes, where trout are a common species, many of the fish are taken on spoons and diving plugs, typically trolled behind downrigger balls. On inland lakes, soft plastic flukes, swimbaits and tubes rigged on 1/4- to 1-ounce jigheads can be exceptionally productive, especially when cast to shallow water or vertically jigged on deep humps for lake trout spotted on sonar.