Am I correct in thinking the following.
I'm using ZeroPark RON for PPV traffic for sweep camps, normally each campaign I run has around a 100 targets per page (hundreds of pages). If we were using the rule of 2 x CPA per target, CPA being say $2.00.
Then depending on your budget, the average person starting would test just 1 page = 100 targets at 2 x CPA = $200
If that is correct, then that is a ton of targets left on the table.
Is this normal to leave so many targets untested?
This is theory, however, in reality it's not possible to test all targets for 2x payout. You can only do that with larger placements/targets, with some small ones you'd have to wait weeks to be able to make a decision.
Usually it's about a dozen or maybe 50 larger placements that can spend 2x payout quickly, then quite a lot of medium sized ones where it's gonna take a day or few days and then a ton of small placements that you can't optimize based on this at all.
One would think that it would be a good idea to cut all the small ones, however, these are known for delivering "random" conversions that can mean massive ROI per placement, so you don't want to cut them and leave them at the table as you suggested.
Your main goal is to optimize the large placements first, so they don't drain your budget, if you can build a well converting funnel based on these large ones, the small ones will usually work decently too.