There is no such thing as one best style. The effectiveness of a system depends on the ability of the student to learn and the ability of the teacher to teach. It is the person who makes the style, not the style that makes the person.
In Silvera Karate, a wide range of techniques are offered to provide flexibility in training, so that even the physically and spiritually weak individual can develop their bodies and minds gradually and naturally. Silvera Karate is also excellent for young people. The instruction is geared toward building the student's moral character as well.