I've heard anecdotal reports from numerous people that snakes that hatch with a small "bump" (not even sure you can call it a true kink, but it's what is commonly referred to as a kink) will go on to have that bump be completely undetectable several weeks later (while the snake is still undeveloped enough that the bump couldn't have been covered by fat or muscle development). I wonder if the baby has been positioned such in the egg that it caused a mis-alignment of one vertebrae (or supporting structure like a ligament), which then realigns itself when the hatchling comes out, stretches out, exercises. IF a small bump which we can easily feel was a _true_ spinal deformity, it wouldn't vanish. And I mean, completely gone, undetectable by people who are experienced at feeling such things.
My first experience with this was a plasma stripe, who had what I thought was a kink, I was fairly certain I felt it, but then consequently couldn't find it, and I mean I _obsessively_ felt that snake's spine, hundreds of times. I even brought her to a snake vet, Dr. Orlando, who reported that her spine was kink-free.
I wonder if we shouldn't be so quick to declare these neonates "kinked," (and possibly even feed them off or otherwise euth them!) but note the location, and then observe them for a period of time.
Luckily, I didn't have any kinks this season, but I think for future seasons I'm going to make a standard snake body outline and note the location of any bumps, then document follow ups at each successive feeding.