<p>I associate it due to the fact that Chidori isn't a jet thruster and we're talking about movement speed. How does concentrating Chakra in your arm, make your legs move faster? Last I checked, Chidori doesn't get shot out from behind the user like jet thruster, so that's irrelevant. So far you have failed to explain how concentrating the chakra within the arm, boosts one's movement speed and instead, resorted to trying to change the subject.
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