On the 6lm map, there are 25 zones (other popular HL+U maps also have 24-26 zones), while the 8x12 scheme has 33. Because of this, some of them are quite small. The distance between the central cities might not be as small. I'm not sure whether to leave the roads as medium or make them fast.
I would also reconsider this point and make it like the 6lm map, with a limit in the form of two utopias:
6. The maximum number of utopias has been changed to unlimited in zones 9 to 20 (zones with villages).
Discord - Xocenk#2473