Chuck Holland 2014 Ko Dan Ja O Dan candidate evaluation video 2/2. Staying relaxed in upper body during Soo Gi exercise. More consistent connection of breath with physical movement.
2014 Ko Dan Ja Shim Sa Teaching Video.
Theme: Shin Chook
Focus: Creating power for offensive and defensive techniques
Core content: Use of breath to create tension
Chung IL Kim, Sa Bom Nim, Dan Bon 475, teaching a class at Russ Hanke's Soo Bahk Do Do Jang, either late 70 or early 80s. Video courtesy of Frank Bonsignore, Sa bom Nim, Charter member.