Matt Darcy shows the basics of the seated loop choke.
Matt Darcy shows how to set up a loop choke when your opponent blocks the clock choke.
Matt Darcy shows how to switch to a monoplata when you sweep even if your opponent locks your hip in place.
Matt Darcy shows a drill starting from side control where his opponent hip escapes out to a single leg. He then counter with the omoplata. This is a great next step in learning this counter from the drill in part 1.