User blog:Martialmaniac/Morow or Morrow?

I did not think twice about it, but reading around, there is a possibility Hisoka's surname is "Morrow" and not "Morow". Why is it hard to tell? Because his surname was revealed by the announcer, who cried out his name as "Hisoka-a-a-ah Mo-o-o-o-o-rrrro-o-o-o-ow". The katakana would remain the same regardless of the number of "r"s. In my defense I can also add that many English-sounding names/surnames have been modified by Viz not to be too obvious ("Freecss" instead of "Freaks", "Paradinight" instead of "Paladinight", "Mascher" instead of "Mushroo" are some examples, the exceptions being "Neon" and "Light". I don't know about the Chimera Ants.). So, what do we do? Morrow or Morow?