Rick Barry was the best free throw shooter the NBA had ever seen when he retired. The last three seasons of his career were his best seasons from the line, he even registered a high of 94.7% in his second to last season. Even today, 40 years on, he is number seven in this particular all time list.
The fact is, Rick Barry had a very peculiar way of shooting free throws.
Sometimes, you can achieve excellent results by doing something new, something unexpected, something others might actually laugh at you for. If you persist and you are good enough, you can prove there’s another way, a better way, and pass it on as a sort of legacy.
For all others, there’s the way everybody knows. Both are fine, and it’s up to you to decide how to excel. The key is to be comfortable with what you choose to do.