Are you telling me you were 5'10 and could dunk? I am 6'1 and could barely dunk and had large hands. I am skeptical as there aren't many guys who aren't freaks who could dunk being a couple inches under 6'. If true then you must have been quite the stud.
It really isn't that far fetched. I was probably 5'10" or maybe 5'11" in high school and could dunk, but had to do it 2 handed because I couldn't palm the ball without that miracle stickum spray stuff. I could also shoot the shit out of the ball, but by no means did it mean I was a D1 quality B-Ball player. The guys that even get to that level are generally very special at the high school level.