re: At what age did you quit growing taller?

Maybe about the same, but I slowed down considerably at about 14. I had a big growth spurt just before and just after I turned 13, and by the time I was 14 I was about 6'. For the next few years I only grew another about 3 inches and finished out just below 6'3".

Supposedly it's not uncommon for guys to keep growing until 18-20.