I've heard a lot of talk about single coils v. humbucking pickups. I understand that some of the humbuckers (like some of the Aeros ofr the J-45) seem built to have a single coil-like sound without the 60 cycle hum. But what about pickups like the Musicman, the Model One, the Fender Double J (the one they put in the American Precision Deluxe) or the Rio Grande Powerbucker? Are they designed more for producing deeper bass than you can get from the J or even a P bass design? How would you guys characterize the general benefit of a modern humbucker aside from noise-cancelling?