The best clipper for lineups is the BabylissPRO Barberology Outlining-Trimmer. This trimmer is a great choice for those who want to maintain a clean look. With BabylissPRO Barberology Outlining-Trimmer, your lines will be clean and consistent every time. The trimmer itself is also easy to hold so that you can use it for longer periods. The precision of this trimmer is also very good, so you can ensure that you won't cut too much of your hair.