Single Action, Double Action, DAO, Grip Angles And Tex

This is a video about the difference between single action, double action and double action only (DAO) pistols. In addition I address the grip angle myth and the mistake that Tex made that resulted in him shooting himself in the leg along with Kimber Pro Carry II and Blackhawk Serpa holster being used in the accident.
My original video that sparked this: Back Up Guns, Interchangeability & Calibers
http://www.youtube.com/watch?v=g7IA0xBt-hs

Link to Tex's "1 year later video"
https://www.youtube.com/watch?v=SEuBXWujeYQ

Link to a double action (Double/Single) There is a lot of wind in this video but at 3:00 he goes over the double/single operation with a Ruger P series. He later talks about a DAO (S&W M&P)
https://www.youtube.com/watch?v=HPQVNj-YHWs