I'm sorry but I don't agree.. That add really isn't worded right.. A proven genetic stripe would be a visual genetic stripe that is a proven breeder. Yes they put 100% in there but left out the word het so it is confusing. It makes people think the add was written by someone who has no clue about genetics and may not be sure what they have so of course this will cause questions and that is fully understandable.. The word proven means proven breeder if the word het is not in the add. It is a confusing add that does not properly explain what the animal is.