The gogo choke is not a 10 finger guillotine. It's that same clinch/handwork combined with the critical element of the Japanese Necktie -- the head in the chest/leg trap. So you're catching the neck and exerting pressure on the Adam's apple (gogo in Portuguese), then pressing the back of the head into your chest and trapping a leg, which not only exerts more pressure on the throat, but adds a neck crank component as well.