Finally got around to trying the update out. First try resulted in the the screen throwing an error indicating the USB drive files were corrupt and to re-download them. I removed and reinserted the USB drive and the car no longer recognized (or indicated) it was a Sync update USB drive. Performed a Factory Reset of Sync and re-tried the USB drive - success. Took just over 37 minutes to complete the upgrade. So far, no issues noted and we are very happy with the results. Thanks to the community here and CyanLabs for the heavy lifting. Now on to the next "fix" for the car...
EDIT: Only took a single 16GB drive in my case.
EDIT: Only took a single 16GB drive in my case.