I did a lot of weights when I was young. Basically got taken to the gym by older brothers (one of which competed in local bodybuilding) when I was as young as 12. By the time I was 15 - 16 I was 85 kg and doing body weight bench press for 3+ reps. Because I grew so quick (6 foot by the time I was 13) I had long relatively thin legs. Back then I did a lot of squating and other powerlifting movements to try to even things out. Now years later I haven't done weights in a very long time and have more muscular legs than I ever had when I was weight lifting. For me horse stance and other stance training HAS increased the size of my legs.