cck is incomplete

The CCK export is incomplete. That is doing a web export the fields are exported into one text area together with the node type form.

But what does the import really need? Is a composition better? That is

drush sm export cck /path/to/config/cck/

followed by

drush sm import cck /path/to/config/cck/ cck_node_form_x cck_field_x_y