Ok, I watched some of it right up to the point where he described a joystick as:
"instead of using microswitches, this one uses the higher quality, more professional leaf-switches"
Is he mad?! Leaf switches are notoriously unreliable because they bend out of shape and lose contact! (aside from that, leaf switches were used in joysticks originally, and later replaced BY microswitches). The only benefit of leaf switched joysticks was that they were quieter to use.
