I read this thread 3 days ago and decided to take action and implement Pro-Push's Push Collection Tag.
As I suggested by Luke I did not bother to test their back button smart link (they call it something else).
But just after 3 days of testing I am here to reinforce Luke's finding.
Tier 2 Geo. (Same Geo and Same TS)
Pro Push (Time Frame: 3 days of September) Push Sub's View attachment 20581
Total: $10.42 (In 3 days)
Now comparing the number of subs I got last month (10,968 in Monetizer) to this month (1619 in Pro-Push).
The estimated revenue based on the current trajectory would have been close to 100$ to 150$ just from Push Subs.
And as advertised that would have been close to 10% to 20% of the total revenue from Pro Push, unlike Monetizer.