User blog comment:ARZC/Mastering the devil fruits/@comment-4618942-20120307203118

true most zoans would master their devil fruit, i mean it is just transforming the making full use of the animals characteristics but then we have chopper who altered his devil fruit with the rumble ball to the point where he only now needs it for one transformation so like it or not chopper is a true master of the zoan class. As far as logia class goes the admirals already mastered their fruits. Luffy and Brook are examples of users who have brought the paramecia class to its peak though they will probably still enhance the strength of there fruits again in the future, though they mastered their fruits to the point where are able to use it to increase their natural abilities or techniques example gear second and brook coating his sword with his soul to freeze his enemies