I bought some test from you and I just wanted to let you know I tested my girl with them and mated her 
when it changed color and she had 13 puppies and we got 9 live from her they are long and thick coated German Shepherds. 
I am over the moon and cannot thank you enough I have told everyone on our breeder site about your test and can testify they work brilliant.
Here is a picture of the proud mum with her 9 babies at a week old thanks Sue