I just meant mentally prepare yourself
I think Mighty backup works on non rooted phones and may or may not save all your progress in games and such I've never used it non rooted.
I used to swap roms and stuff so much on the dInc and eris i'm just used to it, as long as google pushes my contacts back its all good, the other stuff is just fluff and anything important is already backed up via DRive, dropbox or box.....
Like I mentioned above though it was really pretty painless when I reset the razr, since we accepted the update and she used it for a couple days it was all synced up. When I did the reset and put her google credentials back in it pushed most of the apps back and she really didn't have a whole lot to to do. And the thing runs fantastic after the reset, was super glitchy with horrific battery life after the update.