Having spent a lot of time for video of Ip chun, he is only a man with his famous father'name and , in fact, does not know how to perform " principle of wing chun". Furthermore, he only can practise his wing chun form to be similar as wing chun execrise. If you go through another style of wing chun in China, I guess that they are much better than his style . At least , they know how to use power from their waist and horse strand is more stable than him.