in my experience, the BKPs with actual highest output levels are the aftermath and painkiller
then the nailbomb and miracle man
then the alnico warpig and cold sweat
then holy diver
didn't try the ceramic versions of the warpig and nailbomb, though
just to be clear, I'm talking output and loudness, not compression/saturation
I had the Miracle Man and the Holydiver in the same guitar and can confirm that the Miracle Man has more output.
I also had the Miracle Man and the Cold Sweat in the same (but a different) guitar and can again confirm that the Miracle Man has more output.
I also had the Alnico Nailbomb and the Holydiver in the same (but a different) guitar and found them rather equal in output.
So it seems like if you wanted to go louder than Miracle Man you would need a Painkiller or an Aftermath. I am indeed a bit surprised not to find the Warpig up there.
Cheers Stephan
the nailbomb was definitely louder hotter than the diver in my lp custom, even getting it lower
didn't have the warpig in the same guitars, though, but in the two guitars I had it, it wasn't uber high output at all and definitely less hot than the painkiller in one of those
but it's funny how some guitars can make a pickup react in many different ways
the diver sounded very polite in my les paul copy and very aggressive in my lp custom (still not in a nailbomb level)
the mule in this same les paul copy sounds cleaner than the miracle man in the same guitar, but the exact same miracle man (that I sold to my bandmate) sounds cleaner in my bandmates prs mccarty than the mule in my les paul
we're recording a new EP, and it's mostly his mccarty with the miracle man in the bridge and my '73 lp custom with the custom riff raff and a mule in the neck (I'll probably use some more mules and the black dog here and there)
the clean and crunch tones he's getting with the prs + miracle man are REALLY GOOD, mostly better than mine with lower output models (I'm going for a more grungy tone, a la Soundgarden, while he sounds more "Alter Bridgy")
we're using the Juansolo Baby Boobtube as a clean boost in most of the driven stuff, by the way :D
that thing really expands the guitars frequencies and adds a nice clean boost in front of the amps without sounding hard like regular solid state clean boosters
I'll post the songs in a couple months, maybe some guitar-only tracks
back to the subject, it's hard to know what to expect from a pickup before trying it in the particular guitar
the diver sounded a lot different and much hotter in my custom than it did in my jap copy
the cold sweat wasn't much different, for example
big massive and resonant guitars tend to put some extra output signal, and depending on which frequencies they resonate, and which frequencies the pickup picks better, the actual gain and our perception of it might change a lot