This is shaping up to be the best week ever. I removed an ad from a page, now two instead of three, that boosted CPC. Another site I added vertical ads to and that boosted CTR massively. Vertical centered ads look ugly, but it forces the visitor to pay attention to them.
Traffic is up a bit, better SE rankings, but not by much. Mostly I think better and correct ads are being served. Maybe it takes a month or two for things to "settle in", I don't know.