[quote=Elendra]
Sheffield, did your territories wrong. The Large Cities require 6 unmod provinces to work, not 4. You are therefore short 6 provinces to sustain things!
[/quote]

I've accounted for that, I believe. The 3 Large Cities add up to a required 18 Unmod provinces, the Medium and Small City together require another 8, don't they? Bringing the total required unmod provinces to 26, and I have 30. Unless I've muddled the rules up.