David Seiwert has been involved in the martial arts as both a student and instructor for the past  45 years. He began training as a teenager and has studied arts such as Jiu Jitsu, Tae Kwon Do, Northern & Southern Shaolin, Tai Chi, Kuntao, Silat and various systems of Kali.

Since 2005 Guro Seiwert has began furthering his training by studying in Thailand (Muay Thai, Muay Boron) and the Philippines delving more into the Filipino martial arts of Kali, Escrima, Arnis & Kuntaw

He has also produced numerous Books and Instructional videos on the subject.