Does Yo-Zuri Hybrid float on top like mono?  Also, is it as invisible?

Yes, Hybrid floats.

The smaller diameters are "virtually" invisible. However,

the line is not a pure fluorocarbon, but a bonded blend of

nylon and fluoro.

In clear water the best match is green, but "clear" is very close.

In stained water, smoke is the better choice. I usually fish smoke

because I prefer the way it looks on my reels!

8-)

Thanks.  I knew you'd answer! ;D