Kuai Jiao is one of the original names for Shui Jiao. Matt Furey has a lot of information on this and I know how much you guys love him.
Asia is it anything like Kuai Jiao?
If you looking for a Chinese grappling style, from what little I know of Kuai Jiao, it looks pretty good. Kuai Jiao does have quite a bit of ground work and like Asia said relying on throws a lot to destroy your attacker.
"Those who are skilled in combat do not become angered,
those who are skilled at winning do not become afraid.
Thus the wise win before the fight, while the ignorant fight to win." -O Sensei Ueshiba