I haven't tried the cuties size 8 diapers yet but will soon when they arrive in a few days.
I've ordered some cuties size 8 Boundless diapers from Amazon and they should be here tomorrow or the next day.
When I get them hopefully soon I'll let you know how they fit.
They look promising and if I can almost fit into a size 7 diaper I should be able to fit better into a size 8 cuties diaper.
The cuties size 8 diapers are made for older kids as well.