Cut into the comb.
"Pull your hair [on the sides] out with the comb and take your little scissors and nip at it," she says. "You don't want to cut a straight line, a blunt cut. You want to cut into it (again, scissors perpendicular to the comb)." This takes away length and weight without risking too much damage. "Cut a lot," Atkin says. "As long as the comb is pulled out away so you're not cutting right at the scalp. That comb is your stopper."