Two hour session.
We stopped as soon as someone turtled up. I almost passed with a torreanda towards the end of the round I started on top. He never actually passed my guard. It's quite unbelievable how annoying a grab at the knee can be when on top of the closed guard. Got my fair assortment transitions from bottom closed guard, never actually letting him get comfortable for a pass.
Learned the importance of the two on one sleeve grab plus the extended leg. It's quite good control, but personally I find it's quite dangerous since the whole pivot is on the leg (which can be either bended or pushed off the hip). It's quite good opening for triangles and tripod sweep, however, and it does allow transitions to delariva when desired. It's a pretty good stalling position, until the other person realizes what makes it tick. Got annoyed quite a bit by his open guard, which is based on this position. Now, I actually see its weakness.
Got the chance to practice my double underhook University of Jiu-jitsu escape from the (white/blue) section, it works like a charm. Was lucky to practice about three times the knee jerk half guard pass, with a good crossface, and the person flattened out.
Point to remember for next time : when executing a backdoor deep half sweep, how the hell do I keep him from turning and escaping it? I did it twice, and failed. Swept him twice. Once, with the fundamentals double leg wrestling move, and a second time, but forgot which technique. Ended up in the mount preparation, full mount, he bumped, I cross-faced and landed in an arm-bar. My legs were not pinched/hugging his body enough and he wrestled out of it.
Showed him the same things I'm working on : recovering full guard from half.
Recovered full guard/open guard from half a few times, but he almost passed a couple of times so I had to turtle up. I did the escape we were shown, but he managed to shrimp out of my control, since I didn't close my elbow enough on his opposite hip and/or he was too strong for this kind of control. He's not really my weight class, so whatever. I had that pass! I also finished attacking with a torreanda, but ran out of time. My attacking seems to be pretty darn dangerous. I use the classic torreanda, or parallel knee combined with an underhook on the other leg. The dudes usually turtle, which allows me for some control. I did a good job defending the clock choke about twice, but be rnc'd me once, and bow and arrowed. The beauty of the bow and arrow is that you don't need the second leg hooked to do it. My main problem with escaping his control was that I couldn't bridge on the other side to escape his control, and he took advantage of it. Blame the weight difference.