I could, but I'm concerned that it would then get things stuck in a loop?
I'd have to add 'domain.com' as the name of the conditional forwarder which Microsoft say you can't/shouldn't do
"You cannot use a domain name in a conditional forwarder if the DNS server hosts a primary zone, secondary zone, or stub zone for that domain name. For example, if a DNS server is authoritative for the domain name corp.contoso.com (that is, it hosts the primary zone for that domain name), you cannot configure that DNS server with a conditional forwarder for corp.contoso.com."
as per http://technet.microsoft.com/en-us/library/cc754941.aspx
Thanks
Nick