Not knocking your efforts or anything but in case you didn't know that those that are on 901 can upgrade to 902 through the posted zip file in another thread. I was on 901 that I installed and was forever rooted. I downloaded the mentioned zip for users on 901, installed and maintained root. Now on 902 and only took about 15 minutes.
http://www.droidforums.net/forum/showthread.php?p=2005512 here's the thread, post #38 for the link. Instructions are a few posts after that.
Rooted and Hot Rodded DROID BIONIC