What do people think about this?
Do people see a connection between Google encouraging everyone to use variable bidding and then rolling this out? My suspicious side can't help see this as a further way to create an increasingly black box in AdWords.
I use manual everything. I don't like the idea of automated bidding and I've even started using manual ad rotation and deselection this year (I have an idea that Google chooses the 'best-performing' ad too early on, and so far every new or relaunched campaign is performing better over time when I control which ads are retired).
What about campaigns where you don't have sufficient budget to show your ad all day? What effect will doubling the daily budget there have?