The sorts of threads tend do slow down rather quickly, once a product is no longer available in stores.
I'm curious about your comment regarding the modern sound of the Atlas pickups.
IME, original 60's P-basses have a bright, extended top end. The common association with a dull, fat thump comes more from the way people used to set them up back then- leave the ashtray and foam mute on, roll off the treble, fit heavy La Bella flats, and don't change them until you break a string. Some guys even used felt picks as well.
One of my beefs with the Squire, was the fact that it sounded a little dull to my ears. In my case, it was caused by wildly out-of-spec pots.
So when you talk about a more modern sound, are you strictly talking about treble output, or a hotter overall output as well, with a fat bottom because of a midrange scoop?
That would make sense to me, looking at the big slugs on the Atlases. I associated Duncan QP's with that sort of sound as well, and tend to prefer vintage winds (of course that's just my preference).
It's a shame that Bill Lawrence didn't offer 5-string pickups under his brand. I've heard nothing but good things about his stuff, and recently put his Microcoil set into a Thinline Telecaster. I've never been much of a Tele guy, but when I feel like picking up a guitar, that thing is now my number one!