Spin Doctors are just what the doctor ordered when fishing with cut bait, squids, Mylar flies, or as an attractor for your favorite spoons. The best water rotating flasher available, it has a full 360 degree rotation at slow or fast trolling speeds and is designed to pull easy for any trolling application. Leader length from cannonball or drop weight should be 4 to 16 feet. Bait lead length from Spin Doctor can vary from 1 to 4 feet. Spin Doctors have two front settings, use front hole for trolling speeds of 1.8 or higher, back hole for slower trolling speeds.