I'd like to start by saying this is my experience with the Blackhawks after a whole month+2 days of use.
Rig- Schecter C-1 Artist III->Way Huge Green Rhino->Biyang 7 Band EQ->Blackstar HT20 Head->Avatar 2x12 with one V30 and one G12H30 or POD Farm
Bridge- Sound: The first word that comes to mind is thick. The Blackhawk is so thick my bass is usually at noon of less. (with high gain sounds, but it) It really has way more bass than I ever would have expected. The EQ chart is way off. It has a really crushing and aggressive type of sound when you want it too, perfect for really low tunings. (that I never use anymore go figure) I drop my low E to a B like Tremonti and it's not any less articulate than before. Big chords are incredibly clear and full. Every part of your playing is right there in your face and present. The EQ seemed to be based in near the lower end (150-250) and single notes to have some real weight to them. It also seems peaked in the upper mids. (1400-1800) I've gotten gain tones like: Periphery, Alter Bridge, Ted Nugent, Led Zeppelin, Meshuggah, Kansas, Red Seas Fire, heavier Animals as Leaders, and more if you ask haha. The clean tones can be really nice too but harsh if you don't roll your tone down.
Output: This has brought some questions considering the DC resistance. I can tell you it has very similar output to my old JB. Certainly never overpowering and it can do cleans. I recommend a pedal if you're doing anything real heavy just for that oomph.
Overall: I'm really happy with my purchase and I don't think I could have picked a bridge better for my needs. The Alnico V bridge would be better for people who roll off the volume a lot though. The ceramic can do it and it loses the aggression, but can get spanky. Oh, and I wouldn't compare it to an EMG at all. Sounds completely different than an EMG through my amp. If you have any more bridge questions just ask, as I feel I didn't cover enough ground to do it justice.
Neck/Middle- Sound: My first impression was not a very favorable one, but it quickly grew on me, and now I use it as much as the bridge. It's real home seems to be in a very unexpected place, which is jazz. A split neck tone is perfect for a mellow jazz tone. The notes are really fat, but really articulate though, and you can hear everything you play. I'd say it's a little dark, but it is a neck pickup, and that can be easily fixed. It can also do great Black Sabbath and Pink Floyd tones. It also does a nice overdriven single coil tone, and handles a lot of gain fairly well. I'll also go over the middle position here. It sounds like a Strat clean! Really snappy and does funk tones well. My favorite part is playing RHCP in the middle position. Also it's a lot less dark than the neck and handles gain even better. I get gain tones like: Black Sabbath, Mars Volta, lighter Animals as Leaders, Steve Vai, and RHCP between the neck and middle. I get clean tones like Animals as Leaders, RHCP, TRAM, Periphery, any jazzer, but not really super vintage tones so if that's what you're after sorry.
Overall: The neck and middle are extremely versatile along with the bridge and there is no tone from the 70's on I can't get. I will say everything seems pretty modern though. I'm absolutely in love with playing guitar at any time now.
Any questions can be asked I'll be happy to answer them. Sorry if I seemed incoherent or contradictory in the post.