I can't imagine there are logistical issues with Gillman, a fairly human-esque figure, when we have done Alien, Predator, Demagorgans, DemaDogs, Vecna, The Thing creatures, Wolfmen, Killer Klownz from Outer Space, 10 feet tall walking birdmen out in the streets that roam to every scarezone, and so on and so on. There's also no real reason to actually submerge him into water (a lighting effect would work just fine). They even have the boat still from the show somewhere on the lot, don't they? Swamp is an easy set to do, they've been done many times at KSF. I don't know what the deal is, but it being logistics is hard for me to believe.