 An article was written for Official Karate magazine that featured Dillman and Oyata on the front cover.Perhaps the best known of the seminar participants was Mr George Dillman, 7th dan, Okinawan style, of ryūkyū kempo.Mr Dillman had been told by Mr Oyata when he called, that if he (Mr Dillman) came to the seminar he should be prepared to endure pain.