As I said the "Akita" was bred for showing alone, the colours were the main reason along with others, the Japanes didnt want their native breed associated with them, hence the name change. I love the true Japanese Akita Inu. I remember seeing the import "Tamarlanes Veni Vidi Vici" black and white from memory, striking animal but wrong really as far as native dogs go and thats what the US have a lot to answer for, they alway exaggerate colours and conformation.
As for Redwich, I think a huge majority have it in them!