Guro Jeff started martial arts training in 1971. He has been teaching martial arts since 1976.
His training in weapons and various bladed weapons include the following influences:
Hidy Ochiai - Washin Ryu
William CC Chen - Yang Style Tai Chi Chuan
Toyotaro Miyazaki - Yammani Ryu
Abel Castanos - Kaze Arashi Ryu
Tom Hooper - Muso Jikiden Eishen Ryu
Roy Ringel - Kali Lacoste System
P. Greg Alland - Sina Tirsia Wali
Remy Presas - Modern Arnis
Bobby Taboada - Balintawak
James A. Keating - Combat Technologies/Comtech
Chris Sayoc - Sayoc Kali
Steve Grody - JKD/Lameco
Alan Stewart - Serrada
Yu Guo Shun - Chen Taijiquan
All of these various teachers have helped to create a foundation of sound weapons training and understanding of bladed weapons. This training with decades of experience and Guro Jeff's research and continued study have helped to create a vast curriculum that has proven it's value and worth on the streets of NYC in actual situations.
Guro Jeff has taught in Seattle, San Francisco, LA, Indiana, St. Louis, Chicago, New Hampshire, New York and Long Island, and in Maryland. He is headquartered and based in Flushing, Queens/NYC.