User blog comment:Blackendedsoul/Devil Fruit Limits and Physical Ability/@comment-3119203-20120123133815/@comment-3425840-20120123143158

You can use fruit can use a fruit even if you are as weak as me! I mean you have the fruit after all but imo if you are stronger you can use it better. As for Mr.3's wax like I said, the default hardness of that wax is high and Caribou is not as weak as a kitten, it's just he debut a little late in the series :P