I have been using Fx2 50# for two or three years. It is round, smooth, strong and casts effortlessly. It has pulled numerous bass in the 3 to 6 pound class out of healthy Lily Pads without any failures. Using frogs tied straight to Fx 2.
I use 17 lb fluoro leaders tied w FG knots in other anpplications and love the combination.
I tried a major competitor’s braid and was terribly disappointed. This braid is widely used and has a great rep but I found it fuzzy and difficult to work with compared to Fx 2.
Only down side is I need to order more because a big shark spooled me when fishing for Bull Reds out of Venice. Yes - 50-60 lb shark on a straight run will break 50# Fx 2 at about Mach 7!