Glad you like it
This map is a bit more complicated than a straight mirror image: I removed all the provinces along the "seams" of the maps, then "fused" them together into one new, large, pretty province. I'm not sure how to automate that, but I assume it'd be difficult.
Actually, the mirroring, polar graphic, and province tweaking only took like 10mins. The real hassle was reassigning all the neighbors, as Dom3's internal mapmaker did an abysmal job of that. If someone could come up with a better neighbor-finding algorithm, that would be immensely helpful.
Any comments on the North & South Poles?