I used THIS walkthrough when I installed bugless beast. So i'm pretty sure i have a nanroid backup (please correct me if I'm mistaken). Up until now, I have been using the update.zip method of updating the BB roms each time Pete posts an update. Next time, I want to try performing a nandroid restore before going to BB 7.6 or whatever version is next.
My question is...if boot into recovery and perform a nandroid restore, will i loose all of my data, apps, and settings that i have installed and changed since this nandroid backup was created?