If you are a novice and want to learn how to troll with spinners, GET THIS VIDEO. I have been fishing spinners for 4 or 5 years, but I always learn something especially from a PRO angler, Lance Valentine. He walks you through the basics and provides you different applications of weighting and gives you the "formula" for depth based on your weight. Its a must have to learn spinners. He also goes through using jet divers, dipsey divers, planer boards, snap weights, in-line weights, the whole gammut.