Using the end of a comb, I switched my middle part to my best attempt at a zigzag. While it wasn't perfect (I don't remember it being this hard . . . where's Mom when ya need her?), I could definitely tell a difference. Where my roots laid flat before, they had some natural lift, sans any products or heat.
Who knew when I was in elementary school I was unintentionally adding some major volume to my roots? Not me.