User blog comment:Takagi-San/Highschool of the Dead Season 2 thoughts./@comment-5114030-20120605204943/@comment-3003168-20120606131848

I meant he uses it in the studio recording. When he plays it live he is definitely using pinch harmonics and some sort of digital effect. I don't think Kirk uses a whammy pedal live. He doesn't use much of anything other than his signature wah pedal, at least in the times I've seen Metallica live.