I saw ads like these posted one time and found out that the school was basically looking to add any kind of instruction for certain time frames. So, they had a Kickboxing instructor who taught that, a BJJ guy, a Goju guy, a Shotokan guy, a TKD guy, etc. All had different schedules and were paid hourly rates. So, parents could sign their kids up for whatever classes they wanted, pay the school, and the school paid the instructors. Kinda like aerobic classes at a gym.
Don't like it, but it's an option.
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There are no PERFECT techniques, only perfect execution for the situation at hand.
~Corwin