So a couple days ago I learned DeLaRiva guard. I have to say, this is now one of my favorite positions because I'm pretty good at ankle locks and heel hooks and this is just sweet for setting them up. Once you get them down with this guard they're just right there for the heel hook or straight ankle or achilles. It's also good for MMA because we were doing open guard passing drills with strikes and I was able to get Delariva guard and get heel hooks on my training partner without eating any real powerful shots. For MMA you WILL eat some punches to pull the leg sweep off, but it can be done fast enough that you won't eat any heavy leather in the process.