How to Cut a Servo Pocket in a Foam Wing

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This is a viewer request video as a follow-up to Super Cub Project - Part 4.
"Can you make a vid of how to cut out the servo pockets? I don't understand how you cut the "bottom" of the piece you're removing from the wing."
WARNING!
Unless you are about to cut into your very first wing, this video may induce drowsiness, full on sleep, narcolepsy or other coma like symptoms. On a positive note, it can also be used as an effective cure for insomnia. There may be other unknown side effects so please consult with your physician before viewing.
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