Like I said, MANY people on ultimatemetal.com are pro producers and think that BKP's actually sound like shiteee, for whatever reason Seymour Duncans and EMG's sound better in a mix. Maybe you didn't read my whole post.
Not my experience by far, and I gig with BKP equipped guitars regularly (one actually has a duncan neck at the moment). Could you post a link to some thread with this kind of discussion, and especially, comparison audio clips? I would love to hear them. And they also provide a 100x more info than not-yet-so-heated internet fighting :)
Clearer and more articulate sounds are never a downside for me when talking about cutting through. If that's a problem, amp setting adjustments are needed. But otherwise..never. And that clarity/articulation is what I love about BKPs. About the JB in particular, I've owned one and I can see that in a suiting guitar, it can sound really good. In some guitars, that midrange spike it has, can really start to irritate. Sometimes a pickup suits a guitar (or the player!), sometimes it doesn't. No matter what the brand.
I wonder how many times peoples initial impressions about BKPs are due to wrong pickup height? Nowadays I use the general rule of "2mm from strings when pressed from the last fret" as a starting point. I think that simple guide would do really well in the BKP installation guide. I mean, REALLY well :)
Btw, when searching info about pickups for my newest guitar, I came across this one. It really sold the Black Dog to me, and still is one of my favourite BKP clips.
Sounds 'quite' good in the mix btw :headphones3:
http://www.youtube.com/watch?v=CaqEET376-I-Zaned