The best/toughest flurocarbon leader material I've used is P Line Shensei. I was getting a lot of nicks and breaks with a couple of the name brand fluro leaders when Senko or Ned Rig bass fishing. I've used it in several different weights and it holds up a lot better, is as easy to ty and catches as many fish as the other brands. Probably more as I'm not having to tie on new leaders when I could be fishing.
