On a sidenote, I've never seen a cot dissapear except by event. What conditions must be met? I mean I've held a cot with only my six merchants in it for hundreds of years (it's the one in australia, the ai doesn't seem to go there often and the colonies are good, 5-7 base tax, placid natives save one of them and good prod income as well plus the location penalty isn't too high). As far as I know, only two provinces in india start with 9 base tax if turned to city and pampas del norte/pampas del sur start with eight (and it's grain so I want those in every game I play that includes colonizing over the ocean).