gwEm, Philly, and Tele, Thanks again for the replies and feedback.
Here is my dilemma at the moment.
The holy diver seems exactly the right pickup based on all of your recommendations and in its description...
...however when listening to the sound clips I tend to gravitate towards the tone of the Nailbomb.
This surprises me a bit, but I think the NB has a particular "gnarly" sonic quality that I find the RY exhibiting in my other guitar. This is what I am going for with the pick up selection.
I a trying to achieve a super hot-rodded, full tilt, riding on the edge-of-the rails tone, all with a huge helping of an Organic Sonic quality.
Thanks again for all the replies.
Cheers,
Tom