I just got back from the crag yesterday after using these. My first pair of draws were the posiwire BD's. After much research and play, I found a combination I liked. I use the Evo for my clipping into the bolt. The angle of the biner with the bent gate is unreal smooth. The gate barely opens and its already clipped.... The Evo is also super easy to come off the bolt when cleaning the route. I'm using the WC Helium rope the rope end. Absolutely love this biner.