How would you know if the guy you're learning from really does have a lineage? A lot of those lineages out of East Asia are extremely murky.
Old Chinese saying said, "A student would spend 3 years to investigate a teacher (make sure he is a teacher worthwhile to learn from). A teacher would also spend 3 years to investigate a student (make sure he is a good student worthwhile to teach)."
In other words, one has to do his homework.
Did this teacher ever
- compete in tournaments? How many times? What place did he get?
- taught any good fighters? Who are them?
- ...
As far as the CMA, there were national Chinese tournaments back in 1928, 1929, 1933, ... All winners had official Chinese record. It's very easy to verify if you do your homework.
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In October 1928, the Central Guoshu Institute held another national examination in Nanjing. This event came to be regarded as one of the most significant historic gatherings of Chinese martial arts masters. The tournament was presided by generals Zhang Zhi Jiang, Li Lie Jun, and Li Jing Lin, who separated the 600 participants into two categories:
Shaolin and
Wudang.[SUP]
[3][/SUP] After the first several days of competition, the fighting competitions had to be halted because two masters were killed and many more seriously injured. The final 12 contestants were not permitted to continue for fear of losing traditional knowledge of martial arts by killing off the experts and the overall winner was voted on by a jury of his peers. Many of the "Top 15" finishers (some being
Xingyi boxers) went on to teach at the institute.[SUP]
[4][/SUP]
Yang Chengfu was named the Institute's head instructor of T'ai Chi Chuan;
Sun Lu-t'ang was named head instructor of XingYi Chuan; and
Fu Chen Sung was named head instructor of BaGua Zhang.[SUP]
[5][/SUP]
In 1929, the governor of
Guangdong Province invited some of the institutes's masters (including some of those that had competed in the 1928 lei tai) to come south to establish a "Southern Kuoshu Institute". General
Li Jinglin chose five masters to represent northern China: BaguaZhang master,
Fu Chen Sung; Shaolin Iron Palm master, Gu Ru Zhang; Six Harmony master Wan Lai Shen; Tam T'ui master, Li Shan Wu; and Cha Chuan master, Wang Shao Zhao. These men were known as the
Wu hu xia jiangnan (五虎下江南 - "
Five tigers heading south of
Jiangnan").
In 1933, the institute again hosted the national competition. The rules said, "...if death occurs as a result of boxing injuries and fights, the coffin with a body of the deceased will be sent home."[SUP]
[6][/SUP]