User blog comment:Jojo-a-gogo/How far do you think Zushi has progressed in his nen training?/@comment-48285-20121005025841/@comment-5314364-20121007073544

I think he's probably getting the hang of his nen by now. I mean look at Leorio, he didn't know anything but Ten at that time while Zushi was already progressing in his training. Sure he's no Gon or Killua now but I'm sure he's at the skill level they were at in the beginning of G.I.(since he trains practically everyday non stop).