A Heel Hook From Half Guard

Most streaming issues can be resolved by installing the most recent version of Flash, which can be found by Clicking Here. Even if your browser THINKS that flash is updated, update it anyway. As a last resort, use the following video: (which will play on anything, but costs me a lot more $) :-/

Here's third option:

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dan-26-hide-and-hookHide and Hook (The Defenses to Leg-locks)

In this epically useful video, Dan covers the best defenses to most of the leg locks that you might encounter, and other fundamental principles that will keep your legs safe.