Why don't you just post the pictures, and statement from the vet that the ears are a genetic issue, you said you had as proof? Seems simple enough to me to back up your previous thread.
If the ears are genetic then which dog in the pedigree did they come from? It's not the mother from the picture I just looked at and it's certainly not the father as I've seen him many times in person.
I'd be interested to see pics