Oh yes, I forgot to mention that. Good point. Just be sure to work the highest hammer tiles available in the starting city's BFC.
Alternatively you can run an artist for 3 turns in caste system on normal speed. Depends on whichever is fastest.
Yeah, that first pop is the one that matters, especially if there are good resources just outside the first ring.
I probably should run Caste System more often, but I end up using Slavery for a long while (and rarely Serfdom) for short periods before I switch to Emancipation for the late game.