Is there a way to make a nandroid of my stock set up so that i can have it on backup on my sd card before I flash another rom? I want to run the new gummy charged but I just want to make sure I have everything backed up before I just plunge into it. I'm a little cautious rooting because this seems a little more complicated than what it was on my droid x. Also do I flash the new gummy charged with cwm or odin?