Practiced with a SSG Jimmy Brown while in the military long ago back in the 70s, during the cold war while stationed in Germany, in a Mech infantry unit...testing some of my own work based on Tibetan white crane..
What ever one is teaching, real world experience, according to the encounter level sought makes sense...
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In 1972 Mr. McMurray joined
Grandmaster Jim Brown at the Fort Bragg Taekwondo Club. In 1981 Mr. McMurray was promoted to 6th Dan by
Grandmaster Soo Kon Kim,
Grandmaster Myung Sik and Grandmaster Jim Brown. By 1991 Mr. McMurray earned a 7th Dan in Taekwondo Soo Bahk Do and an 8th Dan in Hapkido Moo Hap Sool from
Grandmaster In Sun Seo’s World Kido Federation. In 2011 Mr. McMurray was awarded his 9th Dan by Mr. In Sun Seo.
Mr. McMurray has been ranked in several other martial arts by celebrated masters, including Isshin-Ryu/Uechi-Ryu by Grandmaster George Dillman, Hwarangdo by
Master Michael Echanis, Kuk Sool Won by Grandmaster In Sun Seo, Shorei-Ryu by
Master Lorraine Lewis, Okinawan-Te and Okinawan weapons by
Master Bill McDonald, and Judo/JiuJitsu by
O Sensei Philip Porter.
GM McMurray
Grandmaster McMurray is also a former Special Forces / U.S. Ranger Combat Instructor who served two consecutive tours in active combat zones. He is a qualified sniper, an expert in unarmed self-defense, and adept at unconventional warfare. He specializes in “silent-sentry takeout” via pressure points, strangulation and bladed weapons. Several military units and police departments in the United States and Germany have benefited from Grandmaster McMurray’s training in unarmed and “personal armed” self-defense and “suspect control” techniques. He is currently the U.S. Military Martial Arts Coordinator and Advisor to III Corps & Fort Hood."