You might add some documentation when going through the IP Swap procedure:

1) My machines didn't boot back up automatically. Don't know if that's the standard, but neither of my CentOS instances came up automatically

2) There's no documentation stating that the MAC addresses on the machines will swap. In CentOS, it maps the MAC address into the interface config in /etc/sysconfig/ifcfg-ethX. Since the MAC for eth0 changed, it wasn't bringing up eth0. Again, no big thing for me, I had the machine up in a minute, but it might stump a RH newb.