Lesson 6 – Wing Chun Techniques – Gwai Jang – Elbow Block Entry Posted on August 5, 2016August 25, 2016 by Sifu David Here is the 6th video lesson… Another great defense technique. “Master yourself & nothing will be impossible” -Sifu David P.S. Grab your FREE Wing Chun DVD yet? Limited Copies Available.. Get Your FREE DVD Here! P.S.S Reserve your introductory live class yet? Qualify for your free class voucher.