On an interesting note, zzrayz, one summer in about 1979, I found a very long (5 feet or so) Black Rat Snake skin on some property we owned at the time, that was part of an old pecan plantation. I had observed the shed-isolate behaviour, or the shed-eat-isolate behaviour, so I went back the next day and began looking for woodpecker nest holes or rotted out fragile pecan limbs. Upon climbing to the first major fork of the tree nearest the skin, I could she the/a large BRS snug beyond belief in an old woodpecker hole nest, about ten feet up. The distal limb had long ago been sawed off, and what was left died I guess, leaving soft wood for the woodpecker. It was so soft that I broke off the roof of the chamber and extracted the snake. It had obviously recently gorged on something. Took it home, and the next day it had regurged 5 baby (not-quite-newborn) rabbits. So I took it back and released it under the tree, sorry I had bothered it. I used to be able to trace a fresh shed to a live BRS like Sherlock Holmes.
Ahhh......for those carefree halcyon days of youth and long summers chasing critters.
( The moral of the story is, I don't know how a BRS, pushing 6 feet, could have forced itself (or wanted to) into an old woodpecker hole. And on a full stomach, at that. )