However, in his book "Okinawa Karatedo Old Grandmaster Stories" Eizo Shimabukuro says that Chibana was too old to teach and so Chibana referred Shimabukuro to his senior student, Nakazato, for instruction. Eizo Shimabuku also added two kata from his time in Goju-ryu with Chojun Miyagi.
According to Eizo Shimabukuro's book "Okinawa Karatedo Old Grandmaster Stories," Chibana was too old to teach, so he recommended his senior student Nakazato for instruction.  Shimabukuro also added two kata from his time training under Chojun Miyagi to his own karate style.