Nick - I think you are going to confuse an awful lot of people here. We do 'zero speed autos' all the time and, although the ROD is higher than a 65 knotter, it is not excessive (perhaps 2500 fpm for your favourite French heli!) with a near normal Nr. OK, so we convert to a normal auto at 1000ft, but perhaps you could expand your explanation to help us lesser mortals understand what goes on.