Hi all, I've got into Facebook Ads recently and have some questions for you. I'm using CPC bidding and I know that for an ada to perform well I need a good CTR (from what I saw on the net a CTR > 0.1% is generally considered good, can you confirm this?) My main problem is how to test many different ads without spending a lot of money: for example, I'm now running a campaign which consists of 21 different ads, and I want to see which one of these performs the best while spending the mininum amount possibile. So my main question is: after how many impression a I can get a reliable CTR stat? Is there any tip you can give me about the best way to test many ads spending the minimum? Thanks!