S.E.F. Blog

Unlocking Kenpo: The Hands-to-Center Principle and Kenpo Yellow Belt

At its core, Kenpo is a system…

The Hierarchy of Decisiveness

A Model for Strategic and Tactical Combat

Understanding Lateral Fields of Engagement in Combat

Side-to-side movement and the centerline

Mastering Time and Distance in Martial Arts: A Strategic Framework

Time and distance as weapons

In martial arts, time and distance are not just dimensions but powerful weapons. The ability to manipulate these two elements can…

The Fragility of Physical Toughness

The paradoxical relationship of physical and toughness and…

Accordial: The Word for In-and-Out Motion between Opposing Forces

“The difference between the right…

The 7 Deadly Blitzes

Unleashing the patterns of combat in the martial arts

Jeet Kune Do, The 4 Ways of Centerline, and the Shapes of Combat

The Prefight Triangle

Self-defense, tactical time, where to stare, and hands kill