In the second solo of Master of Puppets, Kirk does this thing where he makes the guitar scream...I don't think it's a pinch harmonic. I think it may be a natural harmonic on like the 3rd fret E string and then he vibrates his whammy bar. I was reading a tab though and it said to perform that note one had to pull the string off the edge of the fretboard and "fret" it against pickup. I don't understand what that means...could somebody please explain that...or if somebody already knows how to get that scream could you tell me what he does to get it? Thanks.