It is not proven but in some of my offspring they tend to be way more blushed when Het for Ghost than their siblings. I use Orange ghost lines and this is what I have noticed. Bryan at BHB showed me this also and believes there is a possibility. I purchased a Mojo HEt ghost from him and he compared to other Mojo's he had. No doubt that The het is blushed and lighter in color than its siblings...
Like I said not proven...
J