Goal was to get my brother's moto xt-926 running CM 10.1 like my other Nexi ( 2x GNex, 2x N4), including flashing, backups, etc. with CWM. We were running 4.1.1 and I had rooted with Matt's previous toolkit, utilizing Voodoo, and Safestrap 3. Today:
I unlocked the bootloader first per Matt's advice. I then completely uninstalled SS3 via the app, and then uninstalled the app. Next I installed CWM using the Razr Recovery Flasher Tool, selecting Epinter's CWM port. Once I had S3 gone and CWM installed it was all downhill. I chose Epinter's CM 10.1 ROM,
...latest version (4/27) uploaded by dhacker29. Once I had a solid nandroid via CWM, I installed CM 10.1 and the appropriate Gapps for 4.2.2. Motorola makes good hardware, but Verizon really effs up a good experience by putting so many roadblocks up. From now on, it is as simple as backing up and then flashing the next greatest flavor of Android. Hope this post helps someone out there.