The worm weight - How large do you go?
When fishing a plastic worm, one of the most common questions asked is, "How do I know what size worm weight to use?" You must closely examine the conditions to make that decision. Is the wind blowing? Is there grass where you are fishing? and how deep is the water? If the wind is blowing fairly hard then it is going to take a heavier weight no matter what the depth, in order to feel the lure and the bottom.
Oh yes did I mention that 90% of the time you should be fishing the worm on the bottom? I always use the very smallest and lightest worm weight that allows me to feel the bottom or maybe a brush pile that I am fishing. Here on Lake Okeechobee this may be as light as 1/16th ounce, though 1/8 ounce is more suited most of the time. When I fished Truman Lake in Missouri, I used a lot of 1/2 and even 5/8 ounce weights when fishing as deep as 25 feet. The size will depend on the size worm you are fishing and how quickly you need the bait to get to the bottom.
In lakes with grass, unless the grass is heavily matted, a very small weight will work much better than a heavy weight so that the bait can be worked more naturally through the grass. As a general rule start with a light weight that allows you the control you need for the conditions and only go heavier if you move deeper or the wind gets up. A slow presentation is of utmost importance in worm fishing and the lighter weight will force you to slow down in order to maintain bottom contact and keep the worm in the strike zone.
WALT REYNOLDS, Touring Pro