The answer is simple and complicated. I always try to keep it simple. If dipseys on short leads are working, why change? If spoons and cranks are working, why bother with worms? If inline sinkers in SS line cut your leads in half, why run your lures out 300+ feet? When side planers and jet divers are really productive, or perhaps the downriggers, why change? I always listen with my radio in scanner mode and many times will pick up a presentation that is working for someone near by and if I have it on board, I will switch a nonproductive method to one that might do a better job. Often it is just a color, a lead, a speed or a direction of troll. Subtle changes can often make a big difference. Try to find out what is working for the locals before hitting the water. There is a lot of useful info at the bait shops and on the rigging line by the ramps. Hope some of this helps you. Remember those walleye aren't going anywhere until they are in your net....