This short video shows you how to use and will give you some ideas on how to split test or AB test your Ads.

Remember: you should always have at least 2 ads running for every single AdGroup in your account. It’s the only way you’re going to be able to improve the Click Thru Rates (CTR%) for each group. Once you’ve got a clear winner, delete the loser & write a new Ad to compete with your control (the winner so far).