Hello!
Looks like the AdSpyglass solution is exactly what you are searching for. Let's get in touch so that we share more information on how to start the activity with us and get the most of it. We have released a few major updates for Popunder and Interstitial codes that will allow you to control ads behavior with higher efficiency. Also, you pointed it correctly, that with our codes you will get the best CPM
You may just sign up here
https://www.adspyglass.com/registration-asg and get in touch with our Support Team via Live Chat.
Or, just drop us an email:
[email protected].
Looking forward to hearing from you