When the opponent is slipping on a RNC, don't you want to lower your chin so he can't get his elbow pit underneath, thus cutting off the bloodflow in the sides of the neck? So, you kinda have to stick your chin in there, but lower than he wants. Then you can grab his hands and pull them off, or bite his elbow pit because now you can still breathe and survive to escape. Or both in conjunction. Of course, he can always use his forearm bone on your nasal bridge to make you pull that chin up.
How's the head turning escape work? Is that from standing where you just shove his elbow up and slip your head out and down before he sinks it? I don't see how that one would work on the ground.