8-10 pound purebred chihuahuas?

My Chihuahua is pure bred, AKC parents and registered. She grew to be a VERY muscular 10 pound Chihuahua. Chihuahuas were originally bigger, it was extremely common for them to grow over 6 pounds but that's not what the AKC wanted so they set the standard and down sizing began. Just like German Shepherds weren't originally bred with a severe sloping back but that's what the AKC wanted so now the show lines are usually bred that way. I'm very happy my dog got so big, she's close to the size of my friend's smaller Jack Russels. I'm not a fan of tiny dogs.