Chinese grappling arts and BJJ

Here's a blog post I wrote a little while back reviewing four books on Chinese grappling techniques.

http://ift.tt/2rlnrqv

Apart from Judo, Sambo and wrestling, does anyone here use techniques from other arts in their BJJ, particularly Chinese arts? Books like these have been around for years and many BJJ people have trained in other martial arts. What has worked for you in a BJJ context?