One of the things I've run into with the cloned images on the raspberry pi is the classic linux eth0 issue with udev.

Linux tries to keep devices in order by remembering their physical address - which causes problems when you move an image from one hardware to another.

The best solution I have found is to build the clone master image using eth9, with dhcp and the clone master's MAC address.  That way, when the system is cloned it creates eth0 on the new platform without any stupid jiggling of the udev network persist rules and reboots.

This works for VMWare clones as well, and saves a little time.