arnisador said:I don't think I'm in imminent danger of injury so I am giving it some time. I do intend to ask at some point, but the class has just started with this instructor and I figure it's polite to try it for a while and see if the answer becomes apparent to me. (Meanwhile, I'm thinking about it, looking in books, and asking here!) He does do the slight flick at the end and has stated that this position is necessary for having a strong position.
Its an honest question, no one should find that inpolite. Besides its always good to know exactly why you are training something, i understand though, with him being new and all. When/if you do ask him could you, out of my own interest, let me know what he said?