I work in a music store and some kid came in with a really beat up off-brand strat-type guitar. I looked at it and asked what was up with the bridge pickup(s). He put a single-coil sized JB and a single-coil sized 59 in the humbucker space. He responded that he couldn't decide which one he liked better, so he went with both.
I wish I had gotten a chance to play that guitar...
You mean like the Peavey Steve Cropper?
do they make an adapter or ring that would allow you to mount 2 single coils in one hum bucker space like that.
Something tells me that 2 hot rails would be to big to fit in a standard humbucking cavity.

They fit fine. You'd just need to jury-rig the pickup mounting holes.
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I'd be more concerned about the magnet interaction.
I'd be more concerned about the magnet interaction.
If they are wired independent of each other I don't think there would be a problem.

Im a straight into the amp kinda guy, no effects, just... guitar -cord- amp.
So seeing that the hotrails is the highest output pickup Duncan makes, I need something in a super high output humbucker to equal the output of the hotrails.
Every other guitar sounds weak compared to my guitar with the hotrails. and I would like something that sounds similar in EQ to the hotrails.
Am I asking for something that does not exist???
I am in talks with the Custom shop and they say they can make me one…How cool is that!