Before Nagamine learned from Kyan, Arakaki, and Motobu he learned Passai, Rohai, Wanshu, and Wankan from Iha Kodatsu, Kosaku Matsumora's top student. Nagamine learned Chinto and Kusanku from Arakaki and deepened his understanding of these kata and possibly the other tomari kata he learned by studying with kyan. I am not sure if Nagamine ever states where he learned Gojushiho or Ananku, but I assume it was when he was a teenager before 1930. The way to analyze tomari te is to look at the tomari kata Nagamine learned from Iha Kodatsu and then compare it to the other Shuri kata.