Know this: Slim, minnow-imitating plugs are the most effective spinning lures for large trout in streams and rivers nationwide. Although local sharpies occasionally score double-digit trout on leadhead microjigs on some southeastern tailwaters, tossing a Rapala is uniformly the best way to catch a big one, especially at dawn or dusk in the summer. Those balsa-cored Finnish lures have come to define the minnow-plug genre for trout if only by their longevity; Lauri Rapala built the first in 1936. There are now numerous variations that should get your attention, including the Storm ThunderStick, the Smithwick Rogue, and the newly popular Yo-Zuri Pin's Minnow. Whatever your choice, it helps to match your plug to the water.