From what I understand, the scoring system will work off the games you've finished (and possibly what you're still in). However, since players take over games in CD, it will not say how many times you went CD. This could simply be counted with a figure, but if so, I was just wondering what people thought about running the score in a field, so it can count this. This would catch people who go CD to get out of problems. However, this would need to be carefully done, because I was doing rather well in a few games, like below, where I had 14 SC's or something around that, then fell into CD.
http://phpdiplomacy.net/board.php?gid=560
Also, a slight note on the anti-multi front: there should be a section checking for players who take over CDs. Otherwise, people could you "substitute" a second account in for their good one, keeping stats high.