Thanks Dan. I actually wrote a piece a couple years back about this as well:<p><a href="http:&#x2F;&#x2F;drjasondavis.com&#x2F;blog&#x2F;2013&#x2F;09&#x2F;12&#x2F;eight-ways-youve-misconfigured-your-ab-test" rel="nofollow">http:&#x2F;&#x2F;drjasondavis.com&#x2F;blog&#x2F;2013&#x2F;09&#x2F;12&#x2F;eight-ways-youve-mis...</a><p>Can&#x27;t tell you how many bad a&#x2F;b tests we ran at Etsy until we figured things out ;)