During PunkHazard, he mentioned observation haki while looking for something underwater, so he must have been familiar with armament at the time.

945

I really like what the character Big Mom does for One Piece; she's a great chaotic neutral/evil force that can influence the story in a way typically Luffy only gets to. I also can't believe her appeal to get the bean soup to the poor town that was kind to her got me misty- the woman who killed her own son about 100 eps ago looked very sympathetic (her dissapointed face didn't hurt, either).

I look forward to this new Haki upgrade because I like the sakura blossom effect. I hope there are more permutations of Haki like this.