About 15 years ago (or so) I saw this guy selling Elaphe schrencki * Pantherophis guttatus hybrids at a snake expo in The Netherlands. I still remember these little hybrids very well, and they actually looked quite similar to Carpet Pythons (colours and pattern, that is). Since Elaphe schrencki and E. climacophora are related very closely, I'd quess an Elaphe climacophora * Pantherophis guttatus hybrid should be looking similar to an E. schrenki * P. guttatus hybrid.