In some of the better stills from the film the heels of the film subject can be clearly seen. In some of the shots the heel is rounded and looks quite "natural" while in other shots the heel is strangely squared off. Why is this? Even for those who assert that Sasquatch has an articulated foot, there has never been an assertion that the calcaneus (heel bone) is flexible. If you believe you are looking at a real Sasquatch the answer of course is that this is an illusion due to a combination of perspective, light and shadow, and the fact we are not looking at the original film. For skeptics like Kal Korff the frame with the square heel indicates an obvious non-animal heel.
Frankly I'm more inclined to buy the shadow and perspective explanation, as I doubt even an ape-suit foot could be that floppy. Floppy things usually don't form neat right angles. But not being a suit designer, I'm lacking in expertise about exactly how floppy they really are.
But if we are looking at a feature as gross as a large heel that morphs that much, how can we trust claims about much smaller features like teeth, boils, scars, and eye infections?
I'm sorry to see MK Davis fail to return to this forum. I still have unanswered questions.