CIMA Studios is proud to be associated with Grand Master John Null.  His experience spans over 30 years of martial arts teaching and training. The Grand Master founded and operates the the very prestigious Harrisburg Martial Arts Academy.  

His expertise includes point tournament competition, tournament judging and arbitration, serving as head referee for amateur and professional kickboxing events, developing of martial arts training methods. Grand Master Null is also the Founder and President of the Pennsylvania Referee's Association.