Two-rows snaps closure

Recently a lady asked me if I can make nappy covers with two rows of snaps for closure. So I decided to try and test them on my son first. 
The two rows of snaps do give a better fit around the waist but there a few more snaps to deal with when changing the nappy.
Depending on the fabric used - I think the two rows benefit the thinner(1mil) PUL, giving a better fit.
Here are some photos of my son wearing a two-row snaps cover made from the thinner PUL.