As previously mentionned, Toshindo Karate is heavily inspired on Kyokushin Karate. Most of our techniques and katas are take from the Kyokushin style.
Shihan LaMattina tries to keep his mind and his style very open. Every form of martial art and every style variaty of these forms where usualy designed with one specific goal in mind. Be it for self-defense, military combat, competitive combat or weapons training, the fact that a style targets a specific application will leave "holes" in the techniques.
So because no one style can ever be perfect, Toshindo Karate frequently includes elements from other styles and other forms of martial arts in the training. Students are also encouraged to cross-train if they so desire.