User blog comment:Neowitch/686 - You're hot when you're cold/@comment-5145405-20121025011513

I feel like Zoro holding back might have something to do with his traing with Mihawk, something like "fully observe your opponent and don't waste your attacks" or something. Similar to earlier in the arc with Luffy countering the Yeti Cool Brothers and saying it was because of his training with Rayleigh