I got a handful of furled leaders from a guy named Quigley. Most I got were for trout fishing but he had some longer heavy weighted ones for salt water. I tried one of these on my floating skagit line that I was toying with on the beach. I'd say that it seemed to work for me. The anchor seemed to hold, the fly turned over and landed pretty quietly at the end of the cast. I used one all season long for two hand overhead casting with my heavier switch rod. One is flourocarbon, the other is monofilament. It worked for me and that is all that matters to me. I'm not sure if they work well or not, but I'm a believer. I can't afford to use them exclusively, but I'll get one every now and then. I also have a friend that has a jig...and he made me a couple heavier duty ones that I've yet to try, but I'm gonna. Best of luck. Let me know if you want to know where I got them and I'll send you his contact info.