Why do Samurai sheath their Katana edge side up? Wouldn't an edge side down allow for a one-motion attack with a diagonal slashing up motion from unsheathing the blade? - Quora
Carrying a Katana On Your Back - Sword N Armory
The Proper Way to Hold a Samurai Sword in Budo Taijutsu : Mixed Martial Arts & Wrestling - YouTube
How To Hold a Katana Like a Real Pro (In 4 Easy Steps) - Swords Corner
How to Properly Hold a Katana (The Right Way) | Hand sculpture, Pose reference, Martial arts techniques