well, i have no idea what song you're talking about or the sound you're describing, but taking a guess and know a bit of hammet's style especially post-load i'd say it's probably a combination of wah, artificial harmonics, and whammy bar... lol that narrows it down i know but hey its something to start with.. =) i'll see if i can borrow somebody's load (of ****) cd and figure it out..