Technique: S-Mount Armbar

https://www.youtube.com/watch?v=inqDga0RzzM

This is one of my favorite Arm Bars. It was taught to me a few years ago by Marcus Norat. What I love about the technique is the fact that you can utilize your weight, pressure, and leverage to pry the arm away from the body. It's a great technique even for smaller opponents.

Additionally, if you fall onto your back, you're in the traditional armbar.