I think the treasury cutoff is a good idea.

I've never looked at how The Team had the per turn/per city script set up, but from looking at the script in the first post, it seems that a given faction will recieve a bonus for having a number of cities, not individual ones.

For instance, This will give the Romans 1200 per turn altogether.

Code:
;Rome
monitor_event SettlementTurnStart FactionType seleucid
and not FactionIsLocal
and I_NumberOfSettlements seleucid < 4

console_command add_money seleucid, 1200
And, this will give the romans 1000 per turn all together etc...

Code:
monitor_event SettlementTurnStart FactionType seleucid
and not FactionIsLocal
and I_NumberOfSettlements seleucid < 9
and I_NumberOfSettlements seleucid > 3

console_command add_money seleucid, 1000
Or does this somehow count for every city a faction owns?