Single Coil Humbuckers, Any Good?

no personal experience with Hot Rails, but I do use his pickups on a lap steel.
I have heard many raves about the Hotrails.
I think they would fatten up a strat just fine.
it would be difficult to compare to the same standard when a humbucker is side by side.
they really are two different things.

I've used them all and they do add punchiness to the single-coil spot, and they don't hum. They are not as full or powerful as a true humbucker, but they do a good job in a single-coil spot.

You might also want to try the little '59 - I like that pup better than the rails.

Does anyone have any experience with these or any other single coil humbuckers.

I've got a guitar (Godin LGX3) that came stock with 3 Duncan Duckbuckers (the older model since this is an older guitar). Those are single coil sized humbuckers that replicate the single coil sound with the reduced noise of a humbucker. These have none of the humbucker sound if that is what you are looking for.

I have a lap steel that came with an EMG Select Strat type pickup that's a "twin rails" type of mini-humbucker in a Strat form factor. Comparing it with a typical Strat single coil pickup, it was quite hot but had very poor treble response. Strong bass and midrange, nothing on the top end. I couldn't stand it in the lap steel. I took it out and put in a lipstick pickup, which I like a lot better.

I put a split rail humbucker in the neck position of a Tele. Sounds good enough. It was a GFS. I've not really cranked it up for the full effect, but I've been able to get good tones from it at lower volumes.

Thanks for the feedback! I was thinking about getting a Fender Strat HSS and replacing either the neck or both singles with a Seymour Duncan rails. I'd REALLY like to be able to hear it before I try it though. I will have to talk to someone next time I make it to the guitar store.