I start YPN with only part of my site, around 10K daily page view, and the money was great, high CTR and CPM. I decide to move the rest of my site and my other site from AS, total around 40K daily page view. It was a wrong move, the CTR and CPM when all the way down, almost 80% less than when I had with only 10K in the program. The nice thing is that I can experiment which programs pays more. The reason I move the 10K pages in the first place was because AS was not paying good for that portion of my site, but now I now YPN does.