I had Smart Shoot before updating. My wife has an 810 that I've not updated yet, and there are some slight differences between the Smart Shoot on the two phones. So take that for what it's worth.
As for the reinstall process, don't bypass the part were you enter in your live address, because that's where your backups are stored. Also, I think there is a pretty obvious step where it asks if you want your backup loaded so you should not skip that. It does mention something along the lines of your backup settings will happen over cellular data to start with, but once it goes through a little 0-100% scrollbar you can then go into settings and connect to WiFi so the remainder of the backup (namely the app installs) will not use up your data.