#3
i've never used one, maybe try it out at a store before you buy it if possible, the type of amp your running through will affect the sound GREATLY, i would personally recommend a metal zone just because i have used them on many different heads and always get a good sound out of it
#4
Dpends what amp, guitar and what else is in your effects chain. If you use exactley what he used with that pedal, it would sound like it.
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