I like the fluoro as a leader material when using braid but using straight fluoro on a spinning reel just plain sucks - at least when it is new. It is stiff, doesn't cast all that well and is prone to wind knots etc. I will say that the stuff is pretty tough and is basically invisible under water though.
Ditto on this. I use braid and then fluoro for leader. Fluoro is definitely tough stuff. I used to not believe line that thin and in a low lb/test would work as a good leader material. Proved me wrong. I only revert to mono for leader when I want more stretch.
And as Dan pointed out, Seaguar is really tough stuff. You get what you pay for.
