3 months on, and frightened to post, but the car seems to have cured itself. The only other useful tip I have learned after the months of frustration, is that now, my routine is to ensure the nozzle is fully into the fuel neck filler, (even to the extent of feeling I am forcing it into the vehicle), and then to increase the pump flow pretty rapidly and "go for it"! When it was constantly cutting out, I was pussyfooting about fearful of filling too fast, it seems now easier just to hit the gas literally.