When you practice this enough, you can make a fire faster than someone using lighter fluid and their favorite lighter to start a BBQ grill!
I once did a fire starting demonstration at a local Girl Scout Camp, with my friend, Don, where we alternated demonstrating the technique before having all the girls make their own nest, and then use charred cloth and the flint and steel to start their own fires. Don got a spark in his charcloth the first strike, and then blew the charred cloth into flames in his nest on his first blow!This does not happen frequently enough, however, to suggest it will happen to anyone else except on the rarest of occasions. It was the first and last time it ever happened to Don! I have gotten sparks in my charcloth on the first stroke, but never fire that fast in my nest. ( I accused Don of putting some lighter fluid in his nest, jokingly, of course, but he denied it! )
A scout leader who was watching told the entire group it took him longer to get his morning fire started to serve the girls breakfast than Don took to get his fire started. He was amazed, and talked to us afterwards on where he could buy a steel and some flint to practice.