[quote=@floodtalon]
Do you know how when you touch Dry Ice it's so cold it freezes your skin and really hurts? Maybe Chen's taijutsu style could revolve around that sort of effect instead. Like the Hyuuga Gentle Fist but freezing the skin instead of sealing off Chakra. Also, I just PMed you.
[/quote]

There's still no drawback to it. With the Gentle Fist, the user injects chakra into each strike to attack the enemy's chakra points. At the very least, Chen should be required to maintain the effect with chakra which will mean he'll only be able to use it for a limited time. I think that would be a fair drawback.