I didn't have big legs... They just responds very well.
I found an interesting pic... 
This pic was taken in 1999 when I was 15. A few days later I started to train... Before that I didn't do any sport.
Don't laugh!

Not to pick on you Steve, because you have a fantastic pro physique, are IMO quite under rated, and you are probably the most honest pro out there..
but, does this quote mean that you started your cycles soon after the age of 15? ..because obviously you had been training before the picture you were referring to had been taken