Gamakatsu Nickel Slip Tie Mooching Rig. Finally, the one thing every serious salmon angler has been asking for is here… a premium Mooching Rig. Gamakatsu is very pleased to offer both slip tie and solid tie mooching leaders. They are tied using 6 feet of clear premium quality and very strong monofilament. The Slip Ties have the smaller hook in front and the larger in the back. The Slip Tie rigs use a high quality dacron on the front hook that allows the hook to slide without chaffing or burning the leader.