I use then strop at the clew and love it. However, i regularly sail with inexperienced crew and they don't understand that they need to use their manballs to launch and or snuff. There is a point that the kite bunches up and needs a little extra effort. I know it's going to happen and expect it. I am in touch with my manballs. Once my crew has launched and retrieved a couple times, they are in touch with their own manballs.