I've been using Cortland Camo Xtra soft 2lb. for my leaders & I've made a few with 1 or 2 strands of fireline woven into it to increase breaking strength.for larger fish. I've landed some large striped bass with these. They turn over really well but I'v only been using them this season so I can't verify to their longevity. but they seem to hold up well. The only problem with using the Fireline Crystal line is that if you do the initial twist over 10% it tends to fail (anywhere between 10-15%) so the 10% is my limit. My board twists both legs at the same time & I use a 1lb. hanging weight. on a lockable swivel. I power furl ( reverse twist) after joining both legs together on the center hook to about 20% & then let it relax to it's own length. I've made them from 5' to 8' but I can make them up to 14'. There is still some stretch in the longer leaders but very, very little in the shorter ones.