In the final clip in this FIGHT! Life series, "Big" John McCarthy -- the most experienced and popular referee in the history of the UFC -- sounds off on what's wrong with how MMA fights are scored, what makes a good referee, how weight-cutting is dangerous for a fighter's health, and why the experience of getting punched in the head should be required for all pro judges and referees.

Produced and directed by Matthew Ross. Camera: Rick Lee. Assistant Camera: Diego Helguero and Anthony Williams. Edit: Ashley Cahill and Ryan Jackson-Healy. Music: Jacques Brautbar.