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But you have described #3 as non-simultaneous block then strike. You are still missing simultaneous deflection and striking with a single arm in a single beat, and seem totally confused as to how that might be done.
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I don't read it that way at all. You are referring to John's #1. John's #3 actually says:
3. Use the same arm to block/deflect and strike.
Just because he didn't include the qualifier..."at the same time", this doesn't mean he is NOT referring to that. He already has the "block then strike" covered in #1, so obviously #3 is block and strike at the same time....with the same arm.