Hey everyone. Quick question on the wristbands. I am a little confused. Does each wristband HAVE to be registered? Or can they be unregistered? I ask because I bought a couple for my myself and my friends, and one person may be backing out, and so I may have to find another person/sell it, so therefore do not want to register it if each one gets ID attached to it. Also, do we all have to come in together still if I sell my other wristband? Or once they have their wristband, are they all set. Thanks for the help!