His guitar has so much **** on it that I doubt anybody that doesn't follow the band, stock him, and sleep with his mom could really tell you what it all does but I'm going to offer up a guess and say that the sideways pickup is to add extra emphasis to the low E to bring out the bass end in the music he plays. A few bands have done this sort of thing but it's mostly done by the groups that are just guitar and drums.
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