Hunters who use 100 decoys or so know how time-consuming it is to set out and retrieve blocks. To speed the work, multi-deke or gang rigs were developed. A gang rig is a long, single decoy line that accommodates a number of decoys, usually 6 to 12. While most frequently used in deep, open water for diving duck species, gang rigs also can be used for puddle ducks. It's easy to make your own gang rig, which simply consists of a heavy 1 1/2- to 3-pound anchor attached to a 100- to 300-foot length of 200- to 300-pound-test line. (Use shorter lines for shallower water, longer lines for deeper water).