Okay, so I've read everywhere about the feet. Pink/white is BA, yellow is JG. BUT! My girls feet are very pink on the bottom but a slight yellow near her toes. Yet she is nearly twice the size of my SS that's the same age as her!! She has HUGE feet and has grown to be ginormous! At what age can you tell the difference by the feet? She is about 6 weeks old. Thank you in advance!