STI Devise, remove sign up for admin

Hi,

If I'm using STI with Devise, I have a Admin model inheriting the base
Devise User model. I would like to remove 'registerable' from the
Admin model but it inherits registerable from the user model. How
would i disable registration for admins?

bump

I don't use Devise but can you not just define a registerable method
in your Admin model?

Colin