I recently used these on 3 multi-pitch climbs and for an anchor class. These are great small cams, very light and they work incredibly well; however, I like the thumbhole and trigger mechanism on the C3 better. My biggest complaint is the color coding on these cams. If you use this, you can overcam these quite easily in the green range. Overall a great cam and I ended up buying them when I saw the set of 6 on sale. Just be sure to use good judgement when placing them and don't strictly go by the color coding.