"The DLR guy has rolled with people from our academy. He is 120kg and allegedly a brown belt, couldn't pass a 65kg blue belt's guard and rolled with a 90kg purple after the purple had rolled for 45mins (brown hadn't rolled at all) and the purple ended up not subbing the guy but in dominant position the whole round. Nobody that has rolled with him says he feels brown belt level, not even purple. The claimed purple Carlson guy has never been involved with the BJJ community in the UK at all. Says he received his belt in 2000-02 (I can't remember specifically) which means he would have been one of the first UK purple belts ever, but nobody knows anything about him. None of the guys who were involved in UK BJJ since the beginning have ever come across him. I think it's important to verify these guys before they end up with black belts on and start promoting people"