The vanish fluorocarbon is garbage. I used it (17#) on mainline fishing for blackmouth and kings. Two hook ups, two broken lines, took flashers, leaders, and spoons. It broke at the knot on the flasher both times. I was told after that the Vanish is the worst. Knot strength was weak when f/c first came out. Don't know if it still is. My Seaguar 50# and 20# leader just came today from cabelas. I am sure the 50# will do the trick. Will let you know if I ever get time to go out again.