Restore selectively: Restoring selectively means restoring to an iOS that's no longer being signed. This basically includes downgrading and re-restoring but I keep it separate to avoid confusion. The meaning in the case that I'm using selectively restore is more towards "upgrading". So for example, say the current iOS version is iOS 6.1.3, and you're on iOS 6.0.1 and you want to restore to iOS 6.1.2. This is selectively restoring, or selective upgrading.