THIS helicopter rig is excellent for catching a wide variety of species, especially in the winter on lakes.
To construct it, use a small swivel trapped between two float stops on 8 lb main line.
Then tie a four inch hook length of 6 lb line to the swivel and tie on a size 16 hook.
Position this about five inches above a maggot feeder which is tied to the end of your main line.
It’s a good idea to add a tapered rubber sleeve over the swivel to act as a boom to avoid tangles.