Thanks for the links. It's really interesting stuff. Ever since I became aware of them, I've been impressed by the san shou fighters. They're really tough and their technique and approach to fighting is hard and practical. We can all learn a lot from them.
I noticed that on the webpage
http://www.changshuaichiao.com/ the author refers to "kuai jiao" as fast wrestling, which is the way Mr. Liang refers to it. "shuai chiao" must mean a more inclusive method than simply wrestling, since it seems to include hand blows and kicks as well.