Titre original : Trial and Error
After Kyoshirou roughs up Goro he decides he needs to start using some breaking balls is he is to be successful in the Majors. Shigeno is against it, but Goro decides to seek help from the top Japanese forkball pitcher- Suguro, especially after Itao once again proves that Major League Players would be able to hit his fastball. With the guidance of Suguro he begins to develop the Gyro Forkball. He also learns how a pitching coach is more useful at learning a players weaknesses than he originally thought, a weakness he hopes to expose on the Young Japan team, for after challenging Itao Goro is sent to join the Young Japan team so the coach can see which of the Japanese main players will be useful in the World Baseball Classic by the recommendation of Kyoshirou.