Well I managed to get some cities to size 6 just after I hit the Classical Era - one thing I found helped massively was that I had the rabbit resource available so built Cree culture and sent out 15 Cree Trackers hunting - with the new butchery button for subdued animals (which btw is absoblinkinglutely brilliant, thank you!) I was sending several food back to at least one of my cities per turn and all those one-off +1 or +2 foods make a big difference over the course of a couple of hundred years! Plus I was bringing back a lot of herd type animals that I subdued near my borders to build their herd buildings.
Ah yes. Early game (prehistoric especially) well over 50% of my food and hammers comes from hunting. I forgot to mention that. BTW, I intend to try to track down the display inconsistency in the food next. If you could post a save game that has such an inconsistency (I have one in my game but it seems to have a different source than your image) that would be appreciated.
) city spam.

But I have learned to adapt my play for the current system. With the above noted differences or Options Not used. Of course C2C changes so much with each version that you are in a constant state of adaptation. So you Must learn to adapt and give up your old regular BtS ways of playing. And for some of you the ways that you exploited or cheated the AI with. 
