You asked in an earlier post if I thought this could be pulled off. They are showing the timing of it here. Also, in the following video they show how to break the lockdown using the Buttock Compressor.
I think the same technique for breaking their grip and posture control could be used... (Forearm on the neck then swim the other arm through @ 2:18) only instead of grabbing below the ass and sprawling back out and put hands on their knees to press down.
I am going to tap somebody with the Indian Death Lock sometime this week!