emg 808 x

This may very well make me look like an imbecile, but here goes nothing: I'm looking into getting an 8 string guitar, but I have one burning question regarding the pickups; why on earth would you use two identical ones in the same guitar? For example, why would you have two EMG 808X...

The 8 string I have now has the EMG 808's(not the 808x) and the guitar I'm most likely buying comes with blackouts. I love the low end and heavy tone of the EMG 808s but the can get a bit harsh sounding at times, muddy chords with heavy distortion etc. I hear the EMG 808x cleaned up this problem...