 His controversial claims include his promotion of the no-touch knockouts, kiai knockouts, and increasing technique effectiveness based on sound and color.To date, Dillman, who remains a well known figure in the martial arts world, has not provided any scientific proof his martial arts methods are effective.Dillman was first exposed to Ryūkyū Kempo during a demonstration Oyata held in Kansas City in 1983, where Oyata introduced his art to the mainstream martial arts community.