Hi, im in media buying for a while now and made some profits and im wondering one thing. For testing should i start with setting a low CPM (for example 0.10$ for Morrocco) or should i take traffic for higher rates? If you optimize your ad campaigns than you bid more for the good zones and websites to show your popups and the unused ones will get cheaper, so i will probably get a lot more bad zones. What is your take on that? I would be very interested in hearing it.