Ok, here are the bits of the interview with Sensei Pat Nakata. The interview is taken from Classifcal Fighting Arts #21.
CFA: Where did Chibana learn from Itosu? Where was Itosu teacing at that time?
Nakata: Chibana sensei started learning from Itosu Sensei about the time Itosu Sensei was introducing karate into public schools. Since Chibana had dropped out of school to learn karate from Itosu (notice, while Nakata is speaking formal titles are used, for brevity in typing I will use last name only), his training was at the residence of Itosu.
CFA: How many days each week did Chibana train with Itosu
Nakata: The training was 7 days a week.
CFA: How long would he train each day?
Nakata: Training was 8 to 10 hours a day.
CFA: How many years did Chibana train with Itosu?
Nakata: Chibana trained with Itosu until Itosu passed away, which was about 15 to 16 years.
CFA: Who were some of Itosu's other students?
Nakata: Itosu's two most senior students were Kentsu Yabu and Chomo Hanashiro. Funakoshi could also be counted as one of Itosu's students, but he seemed to have been busy with other school activities. There were about 10 others who trained with Itosu.
CFA: What kata did Itosu teach to his students
Nakata: Itosu taught numerous kata, but his core kata were: Naihanchi Shodan, Nidan, Sandan, Pinan Shodan thru Godan, Patsai, Kusanku Sho and Dai, Chinto etc. I believe that Itosu taught about 25 kata.
CFA: We all know that Itosu created the Pinan Shodan kata. you have previously said that he created Pinan Shodan kata the first year that karate was taught in the okinawan school system. The next year, since students already knew the first kata, he created Pinan nidan. this went on until he created 5 kata.
Nakata: Yes, that is correct.
CFA: Do you know what the source material was for the Pinan kata? Did Itosu draw from other kata?
Nakata: Itosu meant to create only one Pinan with the source being Kusanku (Dai) from Tudi Sakugawa and Sokon Matsumura. The first kata was simply called Pinan, not Pinan Shodan.
CFA: Do the various Pinan kata draw from the same sources or do they differ?
Nakata: The various Pinan do draw from different sources. It is my understanding that Itosu incorporated many old techniques from his early ti training in Shuri.
CFA: Did Itosu have different goals or objectives for the various Pinan kata? For example, was he trying to teach different things in Pinan Shodan than Pinan Godan?
Nakata: As I understand it, after Itosu realized that he needed to make more Pinan kata, he tried to make the Pinan kata series into a complete fighting system.
CFA: I have always been struck by how difficult the Pinan kata are. I cannot see how a school student who had not previously learned any kata, could start out with the Pinan. Do you know if Itosu tuaght a curriculum of kihon first?
Nakata: Naihanchi Sho/Ni/Sandan were taught as kihon kata. After the Naihanchi kata, they were taught Kusanku, which was too long and too difficult for the young students. He created Pinan (Shodan) which was shorter, so it would be easier to learn.
CFA: When Itosu (and his senior students)began to teach in the okinawan school system, they were already training together privately. How did the two forms of karate-the private training and the public school training differ?
Nakata: The kata performance in appearance did not seem to differ privately or publicly, but the application publicly was less dangerous, yet effective. Privately, the application was for more deadly.
CFA: Can you please describe the three different application levels of each karate technique?
Nakata: There are three levels of application that were taught. Level one was for beginners and the very young students, which was punch, strike, kick, block, and cocking-pulling the hand back to the side in the chambered position for the transitional moves. Level two was for the intermediate and older students and emphasized body mechanics for more powerful punching, striking, kicking and blocking. What originally appeared to be cocking, now became throws and/or locking techniques. Level three as mentioned earlier was viscious and deadly. The punch, strike, kick and block were now executed to destroy the opponent with a single technique. The throws and locks were fatal if applied correctly. Level three was only taught to trusted senior students.
There is alot more, but that is what is relevant to this discussion about the kata and applications. The spaces between items designate break in the interview where other questions were being asked. The interview itself was conducted by Mr. Walter Goodin.