Three ‘Dirty Kimura’ Attacks- Roy Marsh

BJJ black belt Roy Marsh shows what he calls the ‘Dirty Kimura’:

This is a submission I’ve been using for many years that I call the “dirty kimura”.
I like it a lot since i don’t have to give up the underhook to get the shoulder lock.
This means if the lock isn’t working I can almost always go back to a good control position or escape a bad position immediately (if I lose the submission)
It’s especially effective against very strong opponents.