I managed to capture one of Bernard's photos - we think it was the A1, or possibly the A64. Either way riding two abreast on a main artery was fine with traffic like this. Even as a bystander rather than a participant it was interesting to see the slideshow and it made for a good afternoon.
ps - Peter I hope that you are back riding soon. We didn't know where to go without you there to captain the ride. Brian says he is still having nightmares about going over Herders and Widdop in one ride.