Classic Pan 400 rated at 1600 - stand development

Shot this at a diner. I was sitting near the window and the front surfaces you see by the cooks is brushed chrome. It gets very dark towards the back. I processed this in Rodinal 1:100 for 2 hours. 30 sec's ag at the beginning and another 30sec's at the midway point. Water stop and normal fix. As far as I can see the grain is about the same at when I rate it at 400 asa souped in D76. Might even be a bit better. The tonal range is tremendous and I did not notice any weird effects from the very long development on the negs.