Jun 20th 2012, 21:04:20
If you're switching to farmer, you should get bus/res/agri in a 15-15-70 ratio before switching to farmer.
The way I do farmer is I get to about 560-580 tpt on 1900ish acres (with 40 bpt), then I get about 8k each bus/res techs, then about 40k-45k agricultural tech. After that I switch to farmer, do a batch explore from 1900 to 3800 acres, and then rebuild as farmer on 3800 acres. Then, I spend the next 80-160 turns building even more construction sites, and spending 80-90% of the proceeds of my food sales on more technology, and just 10-20% of it on military. Thus, before I start expanding beyond 3800 acres, I should have over 100k total technology points in my production techs, often over 120k.