I've fished Pline Floroclear and Yozuri hyrids for a number of years now and recommend both. They are not pure FC's. They are both fairly cheap. They both break above rating. 8lb Yozuri for example breaks at 12.5lbs or about the same as the 10# Pline Floroclear. Diameter to strenght ratio- Pline and Yozuri hybrids are as good as it gets. If you go with Yozuri for a spinning reel, get the Soft version. These lines have less stretch then mono too.

Pure FC sinks but normally takes a bigger diameter to be as strong as one of the hybrids above. Many a fish have been lost on pure FC and many, repeat many, cheap FC's are on the market. The only one I've had any luck with is Gamma EDGE. I hear good reviews on Sunline Sniper as well but have not used it. Reduced stretch is the only advantage I've concluded in pure FC. Having seen the pure FC and hybrid underwater, i don't think the pure FC any more invisible.

Most people I know that have tried the floroclear or yozuri now make it the standard line and maybe use a braid of pure FC on a rod or too for a specific purpose.