Counters to the Reverse Triangle from bottom of sidemount?
Hey guys, I have a technique related question. I did some searching, but I'm not too sure on the nomenclature, and I didn't find anything anyway.
Essentially, I'm in sidemount. I have one arm close to his head, and for the sake of description, one arm near his legs. He clamps the near-leg arm with his legs. Now, he pushes my head into this, trapping my head and arm in betwixt his head, just like a triangle. Except that I'm facing the opposite way than I would be in a normal triangle. I don't know what it's called; I had guessed reverse triangle.
Anyway, my problem comes with dealing with that. It's not like I've ever been tapped by it, or had it put me in a disadvantageous position. It's just really, really annoying. Everyone holds on to it for dear life, not trying to put me back in the guard, escape or sweep. They just clamp it in there, and squeeze n' pray, if you will.
What I was wondering is, aside from stepping over and sitting on their chest (which is what I've done till now, then I just try to crush them until they let go, afterwards I promptly go for a kneebar), are there any specific counters to this? With bigger guys, or guys with obscenely strong legs, my sit n' crush strategy takes too long (i.e., sparring is already over, and I've wasted my precious few minutes of spartime doing nothing).
Are there any specific counters to the reverse triangle other than sitting on their chest, trying to push their legs off with one hand, and waiting it out?