It is funny that KT and ZYX would dig this hole with the Atmos and 4D, but when you think about it, They are doing the same thing with the whole line, charging big differences for the type of windings where the actual cost differences are a few dollars. Of course the big irony is that the cheapest windings, copper, has the best reviews and followings. And as for the blue balls.... i do not need da blue balls.