I have not been very active recently, as an apology here a value bomb from our most recent experimental test worth $853 
This test led us along a journey of running traffic in far away places such as the Polynesian kingdom of Tonga,
where we probably ended up as the main topic around the evening bonfire on the beach:

Jokes aside, let's have a look at the data:
Test setup: We send worldwide traffic - as broad as possible - to Monetizer.
Goal: Finding some hidden gems and interesting countries on which we can focus.
Details:
- Total spent is $853
- Timeframe is January 2017
- Device types around 80% Mobile , 20% Desktop
- Connection type around 45% Broadband , 35% Mobile , 20% Xdsl + Cable + Others
- Mobile OS around 85% Android , 15% iOS - Desktop OS is around 95% Windows , 5% OS X
- These are the overall numbers, they vary a lot depending on each country

You might say these countries are all unprofitable. Yes they are , or they do not have enough data yet , but there are clearly some countries standing out - Countries which should be added to the testing list for further examination and more focused tests. These are countries you can add to your testing list.
We are just started to dig deeper into the data, here is one example:
Ireland looks interesting, only -45% ROI for the first test. Let's dig deeper. Here is what we found with Drilldown reports:

Already some Green here
All this without even starting to make our own landing pages, split-test them, test offers and all the usual optimization.
This could end up being a very nice profitable campaign!
Here one more - United States Android looks good:

I'm looking forward to your experiences with testing based on the data. I'm sure there will be some success stories. We do experimental tests all the time, and while most do not work out, it pays off in the long run. Good luck!
PS.
We also do some reselling of the pop traffic we used for this test. It's not available on the usual sources. We are currently looking for some experienced pop traffic affiliates who are interesting in doing a private test with us to see if the traffic backs out for you. If it does we can provide bigger volumes for you to scale your campaigns.
Requirements:
- You are doing min. XXX , better XXXX a day profit on pops traffic
- You're willing to deposit $300 testing budget to test out our pop traffic
This is a small private test of reselling the traffic that has contributed to making my partners and me 7 figures last year. We're accepting 5 testers total, since we have to handle everything manually at this point. If you are Interested please send me a PM. More details there.
This is awesome.
Great post, thanks for sharing
Hey @kepe95 .
really great idea to look for new geos ,
especially for CPA mobile .