I'm searching as of this second...and i am also looking for "Z" shaped hair, but I can't seem to find that either...my hair isn't "Z" shaped, yet it's not as defined as 4a hair would be... and I've noticed that NC identified 4b as "kinky crimpy" and 4c as "kinky ziggly" now I'm even more confused... I'm just gonna stick to type 4 in general... i love my curls either way it goes