I'm actually really looking forward to them. I kind of wanted a nice high gain setup in one eclipse. Then a vintage version of that setup in another guitar. I had the Riff Raff, but I just found it not having enough bottom end.
My reasoning for the Holy Diver was that I have the Rebel Yells, and whilst I love the harmonic qualities, and feel of the pickups, I just wanted something similar but fatter. I just found it never had that bottom end chug...well it did, but was a little to compact.