The main event at Metamoris Pro, a Jiu-Jitsu event held last Sunday in San Diego, California, headlined with a true Jiu-Jitsu clinic by Marcus Bochecha and Roger Gracie, featuring a guard pass, hook sweep and plenty of spot-on defenses.
At 8:30 min in the following video, for example, you get to learn about guard replacement technique from Bochecha.
At 18:30, the current absolute world champion yanks out an armbar that Roger masterfully defends.
Watch and learn from the pros!
http://www.youtube.com/watch?v=BZAeaHIWiCE