As much as I love humbuckers, P90's capture the note separation that I has always evaded me. The more I dig into recording history, the more I find that players used P90 loaded guitars in the studio. One of my all-time favorite lead tone is Steve Hunter's lead work on Aerosmith's version of Train Kept A' Rollin. He used an old SG with a single P90 for those tracks. That fat midrange tone just can't be had by anything else. Not that I've found anyway... I've been able to get-by using clever equalization, but the P90 gets it with no nanny devices. I'm using them in a LP Deluxe now. I'd love to find an old SG with P90's at a good price.