The map I created is now posted and available to play on SpielByWeb. A play test there ended in a 3-point difference. This seems to be a very well-balanced map where every extra point you manage to get could make the difference. There are no “sweet spots” that players will fight at the beginning of the game; the longer land chains may not have as many markets and water within reach, the small chains reach more markets and water but it’s hard to expand your chain except with 2 pampas.
I hope some of you will try it out and let me know what you think. The map is #153 and, through some glitch on SBW, does not have a preview shot.