Does CloudFlare, at any subscription level, support the concept of Child Zone (Cut Nodes) and Parent Zones? For example:
mydomain.com - Parent Zone
- Contains NS records for child.mydomain.com
child.mydomain.com - Child Zone
- Contains other DNS records
My observation so far has been that all records want to be associated with the root domain, and attempting to add a separate site for a sub-domain fails. For complex environments, all records under a single zone/domain will be difficult to navigate.