This guy has some rub marks/scabs on either side of the underside of his chin due to rubbing between the tub and rack while trying to escape.  I've seen this in ball pythons quite a bit. Luckily, it doesn't seem to get worse and may eventually mostly go away after enough shed cycles.  He's otherwise healthy and doing great.  I've discounted him by 50% because of the imperfection.

Ready to breed!