Why can i not find anything on these systems of Kung Fu there names and forms techniques ? Are they hideing these systems and being secretive about them ? what kinde of Kung Fu Systems did the Chinese Opera have besides Wing Chun did they have any long fist northern styles ? What about Emei Kung Fu was any of them in the Chinese Opera ? There is a Sifu who taught Bruce Lee some Opera Kung Fu named Yeung Fook he was in one of the Chinese Opera s years ago and learned alot of Opera Kung Fu Systems hes probably close to 100 years old know if he s still alive I will see if i cant find some of the names of the systems he new .