I had a JB in my Ibanez and I swapped it out for a Holy Diver set because the JB was too thin sounding and lacked sustain and clarity under gain. By comparison, the HD has a much thicker, saturated bottom end which is really nice for huge rhythm sounds \m/ And as for the neck pickup, the tone is really open with lots of fluidity and an earthy, vocal-like lead tone. The perfect pickups if you like the mids of a JB but want a more ballsy sound :)