I dunno bout holding me breath …, but I live in fear with you!
Technically their Kordofan male is sufficiently old to breed, but those conflicting reports of (ad-)mixing all and sundry give way too much room for the other males having a go ..! I do agree a full DNA test is what should happen first and foremost.
Why the studbook has not ordered Gill and Co. to clean up their act and separate this valuable import stock from their other giraffe and how it came to be the hybrids and all are still there is anybody's best guessing beyond …, but then Gill makes a good Wuthering Heights … won't he … (as in impossible to work with)