Hmmm. A break in the silence

Did a conversion report for the month todate and found a couple of missing words in an ad that might be significant. The wording in the current singular 'S' ad says "500 S's starting at $299. Pet-proof fabrics & storage space!" and is not doing well. The previous ad wording that prompted me to create the singular S campaign was; "500 S's start $299. Discover the pet-proof fabrics & storage space!" So I just added it into the rotation to see if there is a significant increase in conversions.