Campbell sensei holds a 4th Dan in Mukushin Ryu Bujutsu and is the Shibucho (Branch Leader) for the US/Florida Branch of Mukushin Ryu Bujutsu, under direct supervision of current Mukushin Ryu souke - Ohashi Kenshin. Campbell sensei also holds the rank of 3rd Dan in Shotokan Karate, and is the Dojo Cho (Administrator).
Campbell sensei's sincere dedication to the preservation of Mukushin-ryu has earned him the nickname 'Seishin' (Sincere Heart) from Ohashi souke. Campbell sensei believes that to truly understand any martial art, one must look beyond the techniques and principals of the art itself, and into the culture and spirit in which they were created in the first place.