Oh dear,
Blue starts with a
B and is HD A. Not that I think that this has anything to do with the topic (or with mental sanity..., sorry for feeding the troll).
All will hopefully end with an international agreement on DNA tests of blood samples of every breeding dog that have been taken by official and not house-vets under strict control of the microchip and been analyzed by an authorized laboratory. And with the elimination of every breeder that has brought crossbreeds into our breed illegally.
Without that this problem will go on forever.
Ina