Understood. London is a multi-cultural society too, but we still have them. *shrugs* In your experience, how long would it take for those core skills and then advanced skills to become internalised? Well I'm not militant on it as you think. It has a lot to offer in many aspects. Out of interest which ryuha did you see? Depends on the ryuha. Methodology differ from ryuha to ryuha. Some just use atemi to take the enemy down and then kick [Expletive Deleted] out of them. That also is dependant on which ryuha we are talking about. Metsubushi from ryuha to ryuha can range from blocking vision to jabbing the eyes to taking the enemy's eye out with the thumb. There were some famous gangsters in London during the 1960's called the Krays. They had a surefire method of attacking someone unawares and always breaking the subjects jaw. They'd buy the guy a few drinks, be really friendly and then offer a cigarette. As the subject jutted his chin out to light his cigarette, the subject's jaw would be broken with a solid right cross. Well, I wasn't actually referring to carrying such archaic weapons - More aboutthe principle behind it, which remains sound. ASPs, etc. are just as concealable as tessen & kusaribuki.