For eliciting bites from walleyes, the use of planer boards has been, according to Tommy Skarlis, "the biggest advancement in the last 10 years of tournament fishing." But, he admits, it's all for nothing if you miss those strikes. When he trolls a crawler harness beneath a board, Skarlis boats more of the subtle biters by adding an Offshore Tattle Tale Flag strike indicator ($22; 800-237-4444; cabelas.com). The flag signals any slight change of the planer's action. Also, because short-striking walleyes often nip the bait below the terminal hook on a standard harness, Skarlis puts a No. 10 light-wire treble at the very end of the crawler to nab sneaky bait stealers.