I run my own DNS, but in a rather unique way. The registrar record points to my hosting company's DNS servers, but they are slaved off my DNS server; the only

I run my own DNS, but in a rather unique way. The registrar record points to my hosting company's DNS servers, but they are slaved off my DNS server; the only IPs that can hit my DNS server are the hosting company's. I make the changes I want, they're pushed out to the actual Internet facing DNS servers.