I've tried it in another fake ufo video--- and the percentage approaches 100% who prefer to believe in a govt. cover-up than that you have "honestly" faked the evidence.
There was an article in a magazine,
Skeptical Inquirer I think, just last month in which the author detailed his deliberate creation of a UFO hoax using helium baloons carrying parachute flares (a fire hazard if you ask me...).
He documented the hoax every step of the way with video, detailing everything he had done. After the sightings broke on the local news and even on that stupid History Channel UFO show, he released all his documentation and yet, of course, the UFOlogists thought his
documentation was the fake!
I've argued with people about things like the moon hoax and UFO cover-ups, people who are quite intelligent, but they get narrowly focused on government coverups or their need tro believe in aliens and then exclude any data which says otherwise. I think it's some sort of common human trait, maybe a defense mechanism of some sort, but it's destructive and ignorant.