hi, I am looking at getting a puppy. There is someone i met that mixed a white German Shepherd with a standard colored German Shepherd. I was wondering if there were any issues with breeding the two types together. The puppies are mixed colors. The two parents are different sizes, the father is very large weighing approximately 90 pounds with very thick fur and is four years old. And the mother is more of a feminine looking dog that weighs approximately 60 pounds and is a year old. thanks for any responses in advance.