I just made a change that has the site using "AdSense Auto ads" 1/3rd of the time.
It's suppose to place ads on the page automatically then use machine learning to see what works best.
I have no idea what it will do. So far, it seems to be doing nothing (no ads). But, I assume it will kick in soon.
I figure it was worth a try.
If you someone who sees ads when using GTZ and notice the change and have an opinion, let me know...