Interesting. Mine produce non-vaulted, & partialy vaulted skulls. The vaults on mine are barely visible, just a little bump on the head is noticeable.Yep they do, the chick a the back is this one from the other day:
View attachment 1959168
They're both from the same hen. I've worked it out that roughly she produces a ratio of 1 vaulted to every 4 non vaulted chicks.