It's totally counterintuitive--you see the leg elastic and think that's what should be tightened to tighten the seal around the leg. But that causes bunching and compression! It's all about maximizing the waist adjustments.
Laura, mom to ds "Big D" (1.09), dd "Azalea" (10.10), and twin girls M and B (3.13)! Wife to my favorite. Cloth diaper industry geek. Birth geek. Church geek.