Seagaur Tatsu is relatively new but it is regarded as the best premuim flourocarbon on the market. I currently use 10lb Seagaur Invisx on my spinning rods (for open water fishing). I have been really impressed with it on my spinning rods. The only con I see with Invisx is it is a little too stretchy.
Wondering if anybody has tried Tatsu yet?? The first negative I see with it is its cost @ about $40 for a 200 yard spool.