I've been in discussion over on XDA, and one thing to consider about my set-up is that CWM replaces the NC's on-board recovery utility, meaning that the "reboot to recovery X times" factory reset will no longer be available. There is a "factory reset" option in CWM, but at this stage I'm not sure what it will do (perhaps just erase all the settings and data associated with the stock OS install).
And I hope this much is obvious, but replacing stock recovery with CWM will void your warranty if discovered.
Flashing CWM to the eMMC remains the only method I've found to gain access to the SD's boot partition after following verygreen's method and without a card reader, and a number of methods for getting ROMs on the eMMC start with rooting for the sole purpose of installing CWM. Setting up one of verygreen's size-agnostic SDs is, to me, much simpler than rooting, and doesn't need to be re-worked as a result of every B&N software update. Also, depending on your SD card, you may find along the way that running from SD is simpler and at least as effective as replacing the stock OS or setting up a dual boot, as I originally intended.
I might edit a warning/disclaimer of sorts into the OP.
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