hit it with a purpose. Treat it like an opponent and work on your punches like this:
http://www.youtube.com/watch?v=i7dB_4yXPv4
I'd post one of me but this guy is better than I am
http://www.youtube.com/watch?v=i7dB_4yXPv4
I'd post one of me but this guy is better than I am
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