I've had two of these dark grey ones show up. I'm pretty sure they are caramel shatter Miamis which would prove both parents were het for cinder. Now I need to go back and re-inspect the caramels to see if any are caramel cinders.
Picture #2 shows the heads of a caramel Miami, honey Miami, and a caramel shatter Miami.
It's going to be tough to decide who to hold back.