Agree with Silverhead...IR's are not a magic bullet for anything in particular, and I've yet to see any that are marketed as artist-specific. Entire presets are crafted to mimic one player or another constantly, but there's a lot more to accomplishing that than just an IR. They're a bit of a time-saver (once you find a few you like, that is), as there are fewer parameters to mess with compared to a cab block, but that's about it.