If your goal is effortless grooming without exposing your scalp, ordering an "all-over #7" at the shop is the wrong move. Communicating your intended silhouette prevents the dreaded rounded head shape.
Start by specifying that you want the #7 clipper guard on top only. Request that your barber run the clipper with the grain along the back crown to prevent the hair from sticking straight up where the skull curves down. Next, choose a contrasting side profile: a #2 to #4 guard on the sides provides a subtle, conservative corporate blend, while a skin taper fade delivers modern athletic contrast.
Ask the barber to evaluate your hairline before cutting. If you have a receding hairline, a blunt #7 edge on top can create a heavy ridge that makes recession look more pronounced. In those scenarios, seasoned barbers typically recommend reducing down to a uniform #3 or #4, which harmonizes the density between the temples and the top of your head.