Hello, I have a new pup that I believe is a Maltese blue. She has a dark gray nose and is slate gray with white markings (bi-black diluted to blue with no apparent merleing). I have been reading about cyclic nuetropenia aka Gray Collie Syndrome. According to several sites dilute gray collies don't live past age 2-3 due to recurrent infections. I was wondering if anyone on here has any experience with this color in shelties? Can I expect a normal lifespan with her? Or should I get her DNA tested for CN? Thanks in advance.