I was into all the braids and stuff about a year ago, but then I realized that it really is too good to be true. Firstly, their ranks, such as when they say that 8lb powerpro braid has the same diameter as 1lb mono is quite false. If you look at the actual diameter that is written on the powerpro spool and the diameter on a mono, they differ. Secondly, PowerPro braid is flat. So if you look at it one way, it can look real thin, but when you lay it flat, it is quite wide and visible. Good braid though. I caught an 18 pound carp on 8lb powerpro.
After realizing that powerpro is flat, I started looking for a round braid. Got the SpiderWire Stealth. Also nice, but it still doesn't have all the properties of thin mono. Basically, some 8lb SpiderWire spooled on a quality reel with a little jig doesn't let the jig drop down easily to the floor. The 8lb braid is said to be the diameter of 1lb mono. So I tried 2lb mono and the jig dropped straight down on the same rod and reel. This means that mono still casts better. Maybe I'll try 4lb or 2lb braid, to see if it gets easier to cast tiny lures with, but right now, I'm going to try lightening my drag and using 2-4lb test mono lines. Trilene XL I think is the most popular as it's real soft and has no memory.