Originally Posted by maynard2010
really. then why dont all fighters have it. can u develop a good chin
That's like asking why aren't all fighters at the same skill level.
A KO punch requires proper technique and application of power.
Both are things that you can develop by training.
You can develop a better chin to an extent by strengthening your neck and jaw muscles as well as concentrating on recovering from shots when you get rocked in sparring.
Genetics play a factor but they don't determine all of a fighter's abilities.