Here's one of Philipp's students who fought a couple of "outsider cup" mma matches in Germany:
http://www.youtube.com/watch?feature...&v=nHokPScaGCg
Before doing ving tsun he was a boxer. Had over 60 fights in the ring for the "1 Bundesliege". That means he was pretty darn good.
Then he trained with a student of Philipp's in Stuttgart and was convinced straight away with the efficacy of the system.
Sorry there isn't any video of his mma matches. I think he lost on the ground in one fight...
In any event, just because you don't train fighters for the ring doesn't mean that you don't train people to fight.