You wrote: Costume designer Dave Muns who made costumes for movies has said flatly that human would not not be able to fit their head in the “Mask” due to the forehead slope. Here is a link to an abbreviated version. He was a respected creator of costumes for Hollywood movies.
I looked up Rick Baker's opinion on the Patterson footage. He's the Hollywood effects master who specialized in apes and similar creatures, who's "Harry and the Hendersons" Bigfoot and "American Werewolf in London" still astonishes people today.
He said the Patterson Sasquatch was a man in a suit because the hair movement didn't follow that of a natural being.
Despite his opinion and Patterson himself coming off like a cheap huckster I lean toward the hominid being real. While Native American lore and stories vary widely this one is very consistent across tribes and locations.
There is evidence that dinosaurs survived long enough to interact with man. So, it isnt impossible that an ancient branch of man could possibly have survived until today and takes great care to avoid us.
It’s Bill Munns. I gave the name wrong. Look him up. And unlike Rick Baker, he used original footage, not a fifth- or sixth-generation copy. Munns studied the film close up, frame by frame.
Jeff Meldrum at Idaho State is an anthropologist who specializes in bipedal locomotion. He knows the anatomy of feet and how human and ape modes of walking differ. He can, and has, spotted fraudulent tracks.
Both of these are credentialed people.
The ratio between the length of the upper and lower arm, and upper and lower leg bones in humans is well known. It is a human constant. It doesn’t change. Whatever is in the PGF isn’t human; the proportions are wrong, and the step is wrong. You could not make a suit with those knee and elbow points that a human could use.
They need to ask Bob Gymlin how he made the suit and what vendors, materials, and processes were used; how long did it take to make? The suit in the “New film” is actually the suit that was supposedly made two years after the Patty film.
I can’t explain the date discrepancy.
But which of these is more likely:
Someone used a copy of a recreation film that somehow had the production date altered, perhaps maliciously, and asked a confused old man to explain it. He couldn’t.
Or
Two cowboys with high school educations secretly created a suit that well-known Hollywood costume makers couldn’t replicate, using techniques and materials that had not been invented, hired a 7-foot actor to wear the suit and shut up forever, and made fake footprints that could fool an expert in ape footprints?
Take your choice.