based on the reviews/recommendation of RW and others here, I tried the yo-zuri US a few years ago on all my spinning reels.
i love it. i use the 6 & 8lb both. with KVD line conditioner it works really well. strength is way above the rating.
i use it for all applications...cranking, worms, topwater...i can't afford specific set ups for every type of fishing so i have to use some for all around and i use co-poly on all those
i also picked up some McCoy copolymer last year on sale and really like it too...