Honestly, this whole thing seems like hearsay to me at this point, which is almost always considered to be weak 'evidence'. Bob G. himself could tell me in person that the PGf was a hoax (I really don't think he would) but, I would still doubt that. The PGf rehearsal being touted (as I understand), will need to be very convincing in order to sway my opinion. And, I would bet you a dollar that it isn't. If the PGf subject were or, if it even could be realistically replicated with, a costume, that would have been done many times by now.