I'm 6' 3" and was always the tallest one in my classes; had to go two or three grades ahead to find comparable height kids. But now, 6' 3" just isn't that uncommon anymore. Has to be something in the food!? lol.. I used to drink a lot of milk, and I would always joke around that my "extra" tallness, which did not run in my family, must have had something to do with that dairy farm which was right next to the uranium processing facility in the ol' neighborhood.