Just in case anyone is wondering, we did a ghost reservation, got the magic bands, scheduled FP+, and then cancelled the ghost reservation. We checked in today at WL (a non-testing resort), and everything has worked great so far! We used the magic bands for the Magical Express, to open our room at WL, to get into DHS, and to use a FP+. The only problem we've had so far is with dining. It had us enter a PIN, and I entered the one I (THINK) I set up, but it said the PIN was invalid. But they said guest relations could fix that for us. So overall, it's worked perfectly -- aside from the obvious questionable ethics