Kosho Gakkusei
Blue Belt
I'm not sure what CN means by a "kazushi position" but Kazushi is a Japanese term common in Judo and Jujutsu meaning to off balance or break an opponents balance, as has been said a key component of throwing or sweeping an opponent. Happo No Kazushi means the eight directions of off balance.
As a non-TKDer let me weigh in on the subject of stance depth. I have to agree with DArnold and LastFearner on this. Both deep and shallow stance work have their place. Deep is most useful in training to develop strength and a sense of structure & center. Shallow is most useful for application because of mobility but deep rooted stances can be useful for "finishing blows" and grappling. Personally I prefer using Sanchin (toes pointed inward) type stances for the applications requiring rooting.
_Don Flatt
As a non-TKDer let me weigh in on the subject of stance depth. I have to agree with DArnold and LastFearner on this. Both deep and shallow stance work have their place. Deep is most useful in training to develop strength and a sense of structure & center. Shallow is most useful for application because of mobility but deep rooted stances can be useful for "finishing blows" and grappling. Personally I prefer using Sanchin (toes pointed inward) type stances for the applications requiring rooting.
_Don Flatt