Ugg, the neck is such an overlooked pickup. I think the neck was the first reason why I swapped my pickups. The BB Pro neck just was not balanced with the bridge. I really needed a separate EQ for each pickup to make them work with one another. Here is my assessment of the Rebel Yells:
"They just arrived today! I installed them and played with my Dual Recto with EL-34s and my uber warm Thiele 2 x 12. The tone definitely takes some getting used to at first. Being that I usually prefer the rounder more midrange focused sound of Alnico II magnet pickups these are different from that. The best way I can describe it is like they are the same kind of timbre as Burstbucker Pro pickups but better. Think like Tropicana Orange Juice vs Orange Juice made from freshly squeezed oranges. They are both orange juice, but the stuff that is squeezed fresh is simply much better.
Just as the description on the Bareknuckle website says, they are sweeter sounding, more responsive, with a super even response. No frequencies really pop out and stab anyone. I have had to re-eq a few things on my amp but the clean is super rich and far more balanced than the burstbuckers. The neck pickup is not excessively boomy and the bridge is not excessively tinny. They have their very distinct personalities but are definitely usable on the channel. The neck clean is super warm with a buttery midrange and sweet highs. The bridge pickup is bright and twangy, as to be expected. It isn't annoyingly bright like the Burstbucker though.
As for gain, the neck has great note separation and has a sweet lead tone. The bridge is phat like a chainsaw and definitely loves lots of gain. It is so chunky, even, and huge. It makes any mode on my amp literally howl and when I back off the gain or volume knob, the tone cleans up nicely and doesn't get thin like the Burstbucker. I get the impression that with this calibrated pickup set, the idea was to retain the tone of a Les Paul while fixing what was wrong with the Burstbuckers. They do that well. I now have a guitar that loves itself and the amp I'm playing. Overall, there really is this boutique vibe going now and while I really like that vintage Gibson tone, this is definitely cool and unique. By the end of the night I was liking it a lot more and I think it will continue to grow on me!"
When I had a chance to crank up my amp, I liked them even more ^_____^
I don't know if expensive is the right word for them. It is like taking medication to cure GAS: Saves you a few K for different amps and guitars as you search for the missing 'something'. Anyway, I should reiterate, the Burstbucker Pros are not bad pickups. They are good ones. While the aforementioned problems can be remedied by adjusting the pole pieces, I just don't think they work well for what I want to do.