Two-time ADCC World Champion and BJJ World Champion Leozinho Vieira goes through guards like hot knives go through butter. Here are a few techniques from him which you may find useful:
Bonus: Here’s footage of Leozinho training with a prodigy known to have one of the best guards in the sport.
Never underestimate the importance on controlling your opponent’s hips when passing the guard. Here’s Jean Jacque Machado explaining the finer points of this detail for the no-gi open guard pass.
Check out other JJ Machado links on the right side of the video after the jump for more techniques from the 2001 ADCC champion.
This is a transition I’ve been experimenting with and have had decent success. It’s a great transition due to it’s unexpected nature. The video is in portuguese so here are some of the points I’ve come to learn.
To set up, threaten with the knee bar so your opponent crosses his leg.
Control the crossed foot with your far hand and grab the belt or pants with near hand to control your opponents hips through he roll.
Prior to the roll make sure your knee is out far enough through the half guard so you can extend your leg to pendelum your opponent through.