Your video has definately made up my mind about the Quarks. I'm buying them tomorrow. They are perfectly balanced, simple to modify and look uber sexy. Thanks for the video. I too am interested in the Playing Cards. Are their any plans to sell them in the UK? I live in the South of England and the Lake District and would like to know of any stockists nearby. Thankyou Petzl I look forward to having a play with my Quarks