Sgt_Kickaxe - 5:16 am on Jun 13, 2012 (gmt 0)
after which AdWords would optimize to show your higher performing creatives more frequently.
I hope that algo is smarter than the one which keeps telling me I'll earn more with images turned on in Adsense, because I never do. That's what it all comes down to. I'd, personally, opt out until I start seeing raving real reviews from people I trust that it works because you can waste money quickly while advertising.
If any company can figure it out it's Google so all eyes on you Google, and thanks for the opt out option.