Hey hairwhiteguy, yes what you are talking about can happen and is somewhat common at higher levels. Whats happening is the same hand is delivering seperate pulses, and generaly the whole point is to take away a persons balance from first touch so they can't move, feel or think straight. The dangerous misconception that kung fu duels where even handed and where multiple blows where exchanged and some exciting climax was reached is ridiculous at best. When you take away someones balance and have a high degree of skill and can send energy and make it hurt with out winding up or even creating slight distance to deviler the next strike is to never give your attacker a chance in the first place.
Earth, Air, Water, Fire, in the circle we conspire.