Just wondering if anyone else had run into this: Neck-thru 5 string, (2) EMG-HZ passive pickups. On the back pickup, all notes sound even and clean. On the front pickup, the 2nd - 6th fret on the E string sound very dull. Other strings sound fine on these frets. These are a new set of GHS Brite Flats, so I suppose a bad string is a possibility. Weird!