If it seems too complicated, better stay away from it so that you don't render your system non-bootable and/or you don't have a reliable backup to use.
Not putting you down, but you need to have a certain amount of PC savvy/moxie before you start doing certain things and especially when relying on something for an image backup.
It is also the kind of thing that you should TEST after putting it in place to make sure what you THINK should happen ACTUALLY WILL happen when you need it. KnowWhatIMean??