[aznmode]

I use SPB back up and uncheck the following to prevent freeze. I also turn wireless off just incase I get a text or call during backup/restore.

Menu>Options
Stop processes before backup

What I like about SPB is that when I need to restore from a hard reset, I can just run the backup file without having to reinstall SPB first. I believe Sprite doesn't work like this and you need to have it installed to run a back up. I don't know if that's still the case.