The event to which Hama refers occurred in "Blackhawk" #197 (June 1964). That issue began the "New Blackhawks", an attempt to modernize the team that included new uniforms. Chop-Chop got a uniform and his own aircraft (he had nearly always ridden with Blackhawk or one of the other team members prior to this time). Chop-Chop was treated and portrayed as a full member of the team from this point on but certain stereotypical factors were still in play. Like most Asian comic book heroes, he was now a martial arts expert. This was emphasized even more when the Blackhawks tried being super-powered heroes in issues #228 (January 1967) to #241 (Jun-Jul 1968). In that run of stories, Chop-Chop was known as "Dr. Hands."