I highly doubt it would be a waste of your time. On an educated hunch when you restore a nandroid all CWM does is format the partitions then load the data from the nandroid to those partitions; back to square 1 with old data being left behind.
Now, back to snooping in some O2x zips so I can port this to the O2x.
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Are you a developer?