I've got a Jackson RR5. It's a maple neck-thru with alder body.
I'm not totally sure what I'd like to do if I'm honest. I'd like to be able to get a good clean and a nice fat heavy distortion. Not a fizzy distorted sound (I heard a Dimarzio X2N and it was so bright and unrefined it wasn't pleasant to listen to).
I had X2Ns in my maple neck-thru / maple body Vox Custom 24 (stock pups). The best service they did me was to finally cr@p out (short in the bridge pickup) else I'd probably never learned about BKPs :lol:
Maple-neck / alder body will probably make for a rather bright guitar with tight (but deep) lows, a somehow naturally compressed tone (neck-thru tend to do this AFAICT), and a very rich harmonic content. I've not played neither the HD nor RY but from what I've heard of them and what I've learned about guitars and pickups since I swapped my X2Ns for a Crawler set, I think the HD (bridge at least) would serve you well.
Right, that was a fairly easy task of which bridge pick up to seek out.
Seems like there's a clear winner, indeed ;)
In regards to the neck. I really like the Duncan Jazz Clean. Will an Emerald fit this bill?
I had a SD Jazz in my SG when I got it. It's been replaced with a Mule neck and it was definitly a major improvement. The Emerald neck is a hotter and possibly a bit tighter pickup - which is IMHO a good thing for your guitar and style - but with still that lovely singing sweetness from the AIV magnet. FWIW I've been doing some research recently for a neck pup that would be a good match for a ABomb bridge in a LP while still retaining these lush, gorgeous cleans and the Emerald neck is very probably what I'll go for.
And without be biased, are BKP really that good? I've heard them mentioned a few times but they do tend to be over shadowed by Duncan or EMG fanboys.
Some love them, some hate them. The point is that they are just incredible when it comes to clarity, definition, note separation and dynamic, and it's both a curse and a blessing. The curse is that you finally hear your guitar and your playing, and, well, sometimes it hurts - specially if you used to hide behind a big wall of mud, like I did when I had the X2Ns -, and I can understand why some people just can't stand it. Now my first experience with BKPs hopefully was with the Crawlers, that are AFAICT about the more compressed and less demanding of the range - and it was already one of the "aha" moments. The ABomb was even more of a shock to me - replacing a JB in a SG - because despite being hotter than the Crawler, no matter how much gain I dialed in it was still showing _any_ mistake or sloppiness in my playing. Took me some time to get used to it and I still hate it sometimes because it has no mercy. Now for the "blessing" part : when you manage to play your parts right, everyone in the audience will hear each and any intention and nuance even thru a quite heavy mix, the better you play the better you sound and the better you sound the better you play.
This being said there's no silver bullet, and while I find BKPs to be somehow magical there are other good (or "good enough") pickups around, and a lot of great guitar players (I don't pretend to be even remotely "good" - just Joe Average Amateur Guitar Guy) get way better tones from gear I'd label as "barely good enough". At least I'm happy with my tone (and so are my band mates) and I know my gear will be faithfull to my playing, for better and for worse.