Not long ago I spent a day musky fishing with guide John Brylinski. We didn't catch anything, but I learned a lot. Musky fishermen it seems are the ultimate lure tweakers. For example, John handed me the jerkbait below and said "that's what I call a Suick with balls." The "balls" get the lure deep faster, and keep the nose pointed down so each twitch causes it to dive slightly. Almost every lure onboard had some minute modification that added a little something extra.