"The Marce choke is a darce finish that Glover learned from Marc Laimon at Cobra Kai in Las Vegas. It's the one he and Bill Cooper do a lot where they keep the darce/brabo grip the same but drop on their side and clock their hips in towards their opponent to finish. It's the same way the anaconda choke is usually finished. If it doesn't work it's very easy to roll back to the top for the regular finish or to backroll onto the full mount and finish from there. "
I've seen glover go into this a bit in the deep half dvd if I recall correctly...A nice finish