Re: your number one technique
Doesn't really sound much like how I was taught iriminage either. (The most important steps seem to be missing -- getting behind and unbalancing. Why would you try to put your arm on his neck if he's upright? That doesn't work even in the dojo.)
Not that iriminage would be something that I can easily imagine coming to my mind if someone actually attacked me 'for real'. I can well imagine I would find it hard to get into a position to set things up where it was possible to even try to do it. Not sure if that's more me (it's not my best technique) or if most people find it a difficult technique to set up.