Wasn't there myself but I've been following the Waverly Hills reports closely for a few years now. The shadow figure sightings in the body chute corridor keep coming up independently from people who clearly haven't compared notes beforehand, which is always the detail that gets my attention.
What strikes me is the consistency in the reported movement - people describe it moving against the natural flow of the space, like it's going up the chute rather than down. That's not the sort of detail you'd invent if you were making something up, you'd just say "I saw a shadow."
Can you describe exactly where you were standing and what time it was? Also whether you had any equipment running at the time. The photographic evidence from that location has been a bit hit and miss over the years but a few pieces have genuinely held up to scrutiny when people document the conditions properly.
Would be good to get a few more witnesses from that weekend into this thread if anyone else was on the same tour group.