this video is helpful. However, I have a question. When I implemented this on my domain it added a new secondary zone on my other domain controller (I wanted a failover dns) but my PTR and A records are not replicating between the two. I see a lot of info about purging cache and scavenging record...
cleaning them with mother's aluminum polish and a old t-shirt is a easy way to get the same result. The copper leads will shine nicely afterwards.