Good point Epimetheus.
In 5 years of competitive full contact karate, I became so much faster, I would not have beleived it was possible. Unless you give it everything you have, you will never know where your genetic peak is, who knows, maybe you do have Bruce Lee's wiring? You can't say for sure whether you do or not, unless you try as hard as possible.
Epimetheus, you have done us all a favor. I should have pointed out what you did.
In defense of my earlier position, though, even when I weighed 135 and was 14 years old, I could outpunch Senior football players who weighed over 200 lbs on those punching machines that measure your power. This was without any training. I was lucky enough to be born fast and built on it. I have seen others, who are less athletic work for a long time and not get very far. But I have also seen some who could not walk and chew gum become very good fighters. So you never know till you give 100%
B.