i only did it because i was bringing it back to the store for a brand new one. the refurb they gave me was a disaster. and i couldnt leave my cooked ROM on there. and i just flashed back to stock VZ ROM using this thread i came upon by geckotek
http://forum.ppcgeeks.com/showthread.php?t=21161
of course, it broke my data like i knew it would, but since i was bringing it in anyway, tried a DMU reset and it worked(: