I recommend flourocarbon for anything that doesn't float. Feel is better, hooksets are better, and there's the arguable benefit to how invisible it is in the water. I personally believe it helps. Even without the benefit of it disappearing under water the other advantages make it worth it.
One thing I'll add is that I plan on experimenting with small diameter braid and a flouro leader. Yea I know I'm behind the times on that but it's hard for me to change from what works.