Meh chapter. Cross is correct, you don't have to know the exact position of Punk Hazard, You just have to know where to look. PH is one of the four island at the start of NW. It means, you already know where to start searching. Like Xiao said, you can just simply use triangulation on it,

I like the fact that the artificial DF can only produce Zoan types. It means it doesn't give magical like powers the real DF gives but can be viewed as just altering the person's physical.