I appear to have hurt your feelings and was ruder than I intended. I am sorry. I was doing my best not to be flippant, but appear to have failed.
I did include a caveat in my message that the rules probably dealt with the problems. I never said absolutely, or anything else as rude. You probably scanned to the last sentence, got offended (as I would have done seeing the word unusable), and missed the rest.
As an example of my concern with the map (which is nice), lets look at Africa Map 1.jpg (although any map with coast will do). To narrow what we look at, there are the two provinces in the Portugal/Guijon area of the Iberian penninsula. The water connects the two in a way that differs from AdvCiv tradition. Now, your hint of the rules changes gives me a good idea of what you are shooting for.
On Map 7, you have a four corners situation that leaves adjacency unclear. On Map 9, Lake Victoria leaves adjacency unclear (although this is probably handled in your rules). On Map 11, the borders don't quite touch and it is unclear if this is intended or not. Since I'm having to take a wild guess at the new rules, the water boundries around the east side of Madagascar make little sense (the water doesn't connect two areas (unlike the other spots). I haven't a clue what is happening on Map 2 (besides looking vaguely like the AdvCiv boundries). Water boundries in the Caspian sea seem to serve little purpose (the style of the boundries is completely different from the rest of the map too (straight lines, no rounded endcaps)).
I'm sure everything is dealt with in the extra rules, and I will say it again, since you seem to have missed it in my first message. I'm sure the rules deal with what I am seeing.
Unfortunately, I don't have the time/money/friends to see a copy of your magazine, so I can do little other than look at pretty maps and sigh wistfully at what could be

Again, keep up the excellent work. I look forward to hearing feedback from someone better informed than myself.
Thanks,
Jeff