I do. I have one rod outfitted with Suffix 4-lb Nanobraid in Lo-Vis Green. Tensile seems significantly higher than 4-lb although I have not measured it myself. I did pull in a 10-lb carp and a 5-lb catfish no problem on that line though. Casts and ties better than the other braid I use. I also have a rod outfitted with Phenix Ironfeather Fiber Elite 5-lb in pink. It is so thin that it catches every gust of wind. The breaking strength appears to be accurate and actually lower than the Suffix stuff. It loses the color fairly quickly, but is still easier to see than the lo-vis green in most lighting. I also have 4-lb Phenix Ironfeather Fiber Elite in Floro-Green. It is crazy thin and I took one look compared to the Suffix 4-lb and decided my eyes were not quite good enough to tie knots.

I personally prefer braid for all applications and rarely tie leaders.