Without a doubt, slow-trolling natural baits is the best way to catch a big king. Live baits should healthy and strong, while dead baits should be as fresh as possible. Ideally, you should obtain your bait on the morning of your trip or while on the grounds. Live baits should be kept in a big live well with plenty of water flow, and should be replaced whenever they show signs of weakening.
To cover different depths, at least two baits should be fished off downriggers, with the rest fished near the surface. If the kings are scattered, fast trolling with swimming plugs is a good way to locate the fish, since it allows you t o cover more ground.
Drifting can be a productive technique when fishing around inlets and jetties. In this case, the bait is usually allowed to swim around behind the boat while the reel is left in free-spool with the clicker on. As with slow-trolling, a downrigger can be used to cover different depths while drifting.
Casting can also be effective, particularly in areas where kings are seen "skyrocketing" out of the water. In this case, simply cast your plug, spoon or jig to the area where the kings are feeding and make a fast retrieve.
When fly-fishing for kings, chum is commonly used to lure the fish behind the boat and get them excited. This sometimes allows you to pick out the fish he wants to catch, adding a visual element to the sport.