How come never use "silat"? First, the "kuda-kuda" must be stable (stance must be stable), then you can divert ang moh;s blow away from you and whack the vital organs on the side.
Then hit the back of the knee to make him kneel and whack the face or worst case scenario, bludgeon the neck. Easy mah!
Don't even have time to remove his helmet.
Power seriously i bet blindswordman would have thought of this idea. Ya la let this ang moh win this one. He's brave. Of course when he's chinese suddenly all that doesn't apply.