So, suddenly my CI is dropping, for no apparent reason. Yes, I've checked delays and tech and all such things.
Although, what I did do, was to increase my marketing. As I already had 5 campaings going, I thought it would be a good time to tidy them up a bit. I closed them down, and started one large one, that in matters of pure hard cash, was about 15-20% bigger.
Still, CI down from 90 to 84 and still dropping..