F/C is a tool just like rods, reels, and baits. It's us, as fishermen, who must find where it's most beneficial. I use FC for one application only and it's perfect for it. It's a light bait with a slow action rod, and the line has no chance to break. And I use FC for this light bait because it casts easily on a longer rod with a full sized reel.
So again, a tool for a certain job, just like braided line. Everything else works well with XT or XL for me. And the 3K yd spools last a long time, even with very frequent line changes.
FL