As as Shih Tzu owner also, I am leaning towards Lhaso Apso. Because if he is 15 lbs, thats the average size of a Shih Tzu. But if he's mixed with Yorkie and still weighs 15 lbs, then he has to be part bigger dog... and a Lhaso is just like a bigger Shih Tzu. So I vote Yorkie/Lhaso. |