Just so I understand. Because there are a few breeders breeding in United States there is not a standard for the bird? There is a standard for this bird in the country that developed it. Some may feel confident enough to define what the bird is and why. Some may feel confident enough to understand other people's genetic knowledge and determine who has the most knowledge? There is always the possibility that anything could happen the question is one of probability. We bird people are a strange lot that I can say for sure, what may well work in a song may will not work in a bird.
Please post the written standard for this bird if you have it...