While he knows some basic stretching in general, Elastic Steel is more specific as martial arts. And one day he came across the ElasticSteel Method.
Elastic Steel Review
Years of accumulating knowledge and training have shown improvement, but not as easily, as fast and as pain free as it is with Elastic Steel.
At first he was skeptical but after further investigation he bought the Splits and Flexibility DVD despite 30 plus years of personal experience.