I've talked to a Fullscreen recruiter and there CPM's are lower than RPM and BBTV. I have a hunch that they have an extra middle man that they don't have to legally disclose with people, but again, this is just a hunch.
We don't have set CPMs so this is a misleading statement. We have one of the largest sales teams in the industry and they direct sell ads across the globe to get higher paying, more relevant ads for our partners. Depending on the season, our CPMs fluctuate but we almost ALWAYS have higher paying ads than the industry standard.