The first time you apply flowable, you may find the application is not as neat as you’d like it to be. Perhaps have some paper towels/tissues or something of that nature on hand to tidy up the area around the response groove. It is often said that this area is easiest to clean up after the response has dried, but initially I found it best to remove any excess or erroneously applied flowable right after I’d got the level I wanted in the response area.