I am in the same boat. Give it time, someone will crack it soon. I had the same issue on my X and it took a couple weeks, but it happened. I just hope it doesn't take a couple weeks. I use my tether more often than I would like to admit.
just a FYI....go to the end of the posts(#11 I think) for http://forums.androidcentral.com/raz...ethod-xda.html for 6.12.173 updated root method. It was posted on Feb 15 with the MotoFail Universal Portable Version. Its much easier for users without much knowledge or get confused about what to do.
All you have to do is click on the downloaded file and it does its magic......
I'm on 6.12.181. Xt912. I lost root with no doorkeeper. I know i need to flash sbf since I deleted bloat ware. I have RSd lite and both sbf files. My question is do I restore using 6.12.181 or 178 to restore factory with bloat ware so that I can reboot and use doorkeeper. Thank u