Lyman plugs have a very erratic action in the water and we believe it is that action that creates the bite. In choosing a lure it is shape, size, color, in that order. Also keep in mind none of this is written in stone. Bottom liner it is still fishing, and what works today may not work tomorrow,. The most popular size is the 4″ Lyman plug 99% of the time. The size duplicates the size of the bait fish in the body of water you fishing. Colors will vary from day to day. Remember shape, size, color. Color is a trial an error…. Keep in mind the closer to the boat you put your set back the more action the plugs will have. Another rule of thumb is on dark cloudy, windy days=dark lures. Bright sunny days try bright lures., try and match the bait fish,. The rougher the water the closer you can run your plugs to the boat., tie on a duo snap then attach it to the plug. You can tie directly to plug, but it could result in line wear. Lyman plugs can be tuned by turning head screw, and this can change action, also by taking off front hook set up. The lyman is designed to imitate a wounded bait fish. Lyman can be trolled from 1 .5 to 4 mph for different Fish species.
Downrigging is a different story. usually drop the plug back at least 40′ remember the deeper, the closer to the ball you can put the plug. On the shallower areas put it maybe 100′ behind the ball. when fishing the surface put them 300′ back. When the boat goes over the fish they move out to the side and there are your planer boards pulling the plugs out to the sides. fish downriggers anywhere from 30-40′ down to 300′ down rods. Do not get locked into one presentation or just one color or even one area of the lake. Stay flexible keep trying different colors and speeds. If it is not working why would you keep doing it? Keep fishing until you figure out the presentation for that day. Some days we never seem to know what the fish want, but that is why it is called fishing. Remember you are trying to stimulate that fish into a natural reaction bite. Kinda like a cat swiping at a ball of yarn. troll the plugs at 3mph for the rainbows/bull trout, Salmon and 1.8 to 2.3 mph for the lake trout. One big advantage the Lyman plugs have over many other lures on the market is that they can be fished at different speeds.