drop bear
Sr. Grandmaster
Well, as far as my own personal observation goes, I'd have to ask a WC practitioner and a modern grappling MMA practitioner.
I'm not sure, and I'm not sure if that should be an ultimate determination of its application in self defense. MMA competitions, as much as I may enjoy them, are prone to popular trends in MA styles. Trends which (9 times out of 10) will have nothing to do with self defense applications.
Including self defence.