I have my ads set to "Show better-performing ads more often". What happens when I delete the non performing ads and create a new one in its place? will the good performing ad and the new ad be re evaluated together or will the better performing ad maintain its status from the last test?
Using the feature "Show better-performing ads more often" you'll never know which ad is better, turn it off, wait for 30-50 cllicks, delete loser and add knew one. Repeat till you'll get CTR you like