Perhaps the Grey Hats could use some greeter-type helpers - maybe some of their fans who have experienced the hood, know what to expect and how to clear the effects. If there's an informational message on the imager, take a good KI shot of it and hand it out to new arrivals; greet them by name and let them know you're available to answer questions. Perhaps the Grey Hat in charge of the event could even point out the helpers (maybe all could wear the same shirt [in grey, naturally]) at the beginning and periodically during the event and instruct people with questions to contact them via PM (unless there's public Q&A during the event). Something like that....
Sort of like what the Rooftop Volunteer Group (RVG) does during Ktahdn's musical events so he can focus on his D'niJ duties. They assist guests by handing out KI messages about the event, typing the url into the chat for new arrivals, and answering questions.... oh, maybe the Grey Hats should just hire the RVG.
_________________
OpenUru.org Minkata Test Shard is
OU-Minkata Shard Testers Guide (in laymen's terms)