Cluster Domain Controller Replication

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Dear List,

We have a Windows 2003 cluster with 2 nodes

Each node is a domain controller

The nodes need to be hardened, and Microsoft's template will be applied

However I want to apply the template to 1 node first (say node #2), then test applications, if OK let replication apply 
policy to Node #1, else revert back

However how do I prevent replication of policy to Node #1?

And any idea how to revert back to original settings in case of problem?

Thanks,
Ronish