The other day, I asked my sifu about the differences between charp choy and jab/cross in boxing. He told me that basically with the jab-cross, you make contact and then immediately retract back which of course, I knew already. But with the charp choy, it's more of a stabbing punch. You're trying to put your fist through the opponent's body and out the other side. Of course, you don't leave it out there for a long time, but it's not brought back as quickly as a jab. Does anyone have anything else to add to this? I'd appreciate it. Also, what about the differences between pow choy and boxing uppercut?