Maybe i'm just not reading this properly but in the UK do you guys actually turn the engine off for this procedure? I trained in Australia and during my course most of the Auto's performed where to the ground. IE enter Autorotation at 1000ish throttle closed all the way down to around 75 roll it into the overtravel bit and land it from there, However not once did the instructor kill the engine for real. As I said maybe I just misunderstand the definition of you Engine off techinque.