The switch is the move that Kazushi Sakuraba used comonly on his way to getting famous. A Gracie would take his back, and he'd set a figure-4 on one arm to hit the standing switch into an armbar or Kimura. He did it to both Royce and Renzo when they fought.
If you hit the switch with the armbar in mind, you don't have to pull a full switch to get a submission. After you set the turning arm on the inside, once you have your hips free, you can set you figure-4 and sit out while barring the arm. You'll end up with a "reverse" waki-gatame. Not bad for building off of a standard folkstyle wrestling technique.
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