At the time of the F3 introduction, the local Nikon importer said the feature was specifically implemented for the sake of professionals who might load a film with the lens cap on - which in turn would result in a multi second long exposure delaying the film loading process and thereby causing lost precious time.
Before the introduction of the F3, the Nikon FE was widely used by pros as a secondary camera to the F2 - and the feedback given to Nikon was that the blockage of film advance during film loading was a problem, hence the birth of this feature - the customers asked for it
It would be kind of ironic if the F3P didn't also have this feature.
Thank you very much for that information. Very interesting.

Besides, any pro user - who may have accidentally put their F3 on autoexposure would have known that all you had to do if you got hung up on a long autoexposure is to move it off to a manual speed. I could understand them putting this feature on the none pro cameras like the FG or even the FA and FE2. Of course all subsequent motorized cameras - pro or otherwise, always automatically advance to position 1 but I really appreciated that Nikon made this right in the FM3A. That and the full hybrid shutter compelled me to acquire the FM3A.
