Another vote for PowerPro for float fishing. I use the red on my plug rods and green on my float rods. IMO is better than Tufline for float fishing atleast.

As far as Flouro goes, in my experience Berkely and maxima suck the big one. I've been using P-line FlouroClear for drift fishing leaders and P-Line 100% flouro for leader for plugs, divers, herring, prawns, etc. The FlouroClear seems to have really good knot strength and abrasion resistance compared to other 100$ flouro's. It also doesn't sink quite as fast as 100% flouro which i have actually noticed when side-drifting, less snags and abrasion.

And both FlouroClear and 100% Flourocarbon claim to be "Virtually Invisible" by P-line and since the FlouroClear is only coated, it seems to have more desirable properties over the 100%.

Again, this is only my experience and some personal speculation.