To my disappointment, I think that's as good as running in tb gets...The next level of running would be to utilise the elbows, but getting an assymetrical pattern is crucial or else it will look weird. Another factor is that a contracting elbow would add more torque to the chest cause tori chests are soo weak. Good idea though, I shall try to experiment it.

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Oh, i actually have tried it on an assasin creed replay I'm working on, so you'll get to see it in the future ;)