Alright, I'll be Negative Nelson. :roll:
I don't like braid on my spinning stuff anymore. At least not on my bass stuff. I have 60# braid on my surf rigs, but that's only to aid in heaving 4oz weights with 11ft rods into Moby Dick territory.
Here's my problem with it on a couple different spinning applications. The first is that I like to throw a weightless (or almost weightless) trickworm/senko. I am 100% convinced I get less bites using braid. To me, it must be partly or solely attributed to the line visibility. Granted, in both applications, I am throwing this setup in slightly stained to clear water, and often times am working this setup slooooow therefore, the fish usually have plenty of time to inspect it. I usually wouldn't throw either setup in heavily stained water, but if I were to, I wouldn't be so against using it. If I were trying to get a reaction strike with a reaction bait/presentation, I'd have no concerns with the visibility, and in fact, could very well be using braid, because I would be fishing near, in, or around grass while fishing a reaction style bait, and I like how braid performs in grass. It quite simply slices through it compared to mono/flouro. I really like how you can "winch" in a fish quickly with braid and avoid having to dig out a 2# fish inside of a 5# mess of grass. I say this only if you're using heavy braid, like 40# stuff, on a stout rod. Rattletraps and flippin also get the nod with braid near thick vegetation. There is no fighting the fish. It's get their head up and reel hard to the boat. Anytime I'm throwing a frog, it's on braid for the same reason. That said, in open water, it's not for me. It's not just the visibility. I know I have missed fish using braid, and here is how. Braid is ultra sensitive (so long as you are in direct contact with the lure) but if you have any slack in your line, you will not feel the bite and given that it has no stretch when you raise your rod tip and lower it down, you can put 4ft of slack in your line very quickly. Also, and like fender said, it is more difficult to detect a strike watching your line using braid. (I haven't gotten the nerve to buy the yellow braid yet) but I've been told it helps. Don't get me wrong, I like braid, just not on every spinning application.