Extended cut of the POONBOW overview. I had to cut out a lot of the speaking to keep the main video to a reasonable time - this video has all of it.
Main video: https://www.youtube.com/watch?v=w0Av9b9G0WI
POONBOW article: http://www.coop772.com/modifications/thepoonbow
Flywheel case video review: https://www.youtube.com/watch?v=kY1pBwEnzEQ
