Well, I havn't seen any commercial Nunchaku video yet. Sorry, can't help you.
Matt Emig broke his leg at the 2008 LoopKikcs camp in San Jose He has been told by his doctors that he may never jump again.
Ohh sh*t... I hope he recovers fully and will be able to do his actions for many many years.
PS: there're many offtopic replies now, please give comments to the threadstarter's question!