zepedawingchun
Black Belt
Your wrist should be contacting their wrist. If you engage your partner half way up your forearm, you should be doing a tan sau or wan lan sau (fence up hand). This would depend on the kind of energy and direction your partner is giving you when you make contact. From half way (middle) up the forearm, if the pressure is going towards the elbow, you immediately turn the arm to tan sau. If the pressure is pushing towards the wrist, then you use a wan lan sau pushing with your elbow towards your partner. With wan lan sau, you might then lop sau their engaged arm hand with your other hand, then sat sau (pronounced saht or saut) with the wan lan sau hand.