Outstanding, Rob! Thanks for sharing the data, that is most helpful. However, the airspeed indicator isn't very accurate in high angles of attack, so if you ever have the chance to measure ground speeds with a gps on a calm day, I'd be interested in hearing the results.
The voices keep telling me to put an STOL kit on my 1959 172. I think it has exactly the same wing as yours, so I would expect almost identical results. I'd better start buying lottery tickets.