Yep, both the 2" and 3". It's funny, I hear guys saying that they are the quietest vanes they've ever shot, yet they were the only vanes I've ever heard while shooting them. Maybe they have a different frequency that my ears pick up better? Or others have shot some really loud vanes before them. Don't know. I shot Quick Spin 2" Speed Hunters for 10 years and people always talk about how loud those are, but I never hear them from the bow.
I also didn't like how permanently wrinkled up the SK's got when burying in or passing through targets. I've got plenty of other vanes that work as well or better than the SK's that fletch up much easier, don't wrinkle, and stay on my arrows. But lots of folks seem to love them. To each their own.
These are what I'm using now.......all Q2i Fusion Xii vanes, 3", 2.1", and 1.75". Both the 2.1" and 1.75" are in a 4-fletch. But after quite a bit of testing recently, I've settled on the 2.1" 4-fletch as my do everything fletching. They'll shoot fixed BH's out to 100 accurately and consistently, and work great for 3D as well. They keep their shape, no prep to fletch, and they stick like crazy. I refletched some 3-vane arrows to 4-vane and it took some effort to get the old vanes off. I tried pliers just to see how well they stuck, and the pliers tore the vanes while they stayed stuck. I like that. QS's used to be like that until they started using a smaller base.