I've checked out a few sites and been awed by what I've seen.
It looks like I will need to redesign my layout. Most world maps I've seen do a general outline, and then link to other maps for closeups, and then those may have other links for yet closer work. Rule of thumb is overall design - if it's not functional or flexible, it will limit your final product. So, back to the drawing board!
Still planning on CC3 with 1 or 2 modules, but will rework my own maps accordingly. Even if they are flattish, I like the cartographic style for my own work.
However, did play with my ancient copy of CC (version 6); did a small village in a couple of hours. Meh! Looking at it again, I guess it is actually Campaign Mapper, not CC.
I was interested in mapping out a recent campaign event where the people of County Blackheath got wind of an unseelie invasion (outnumbering the humans and their centaur allies more than 5 to 1), and in three days, packed up as many people as they could and then fled, forced marching for five days north across the plains in the middle of winter to their allies and help. What fun! Even more fun was the battle on the border. Heh heh.