What happened with "Superstition" is that Jeff somehow heard the song, and asked Stevie if he could record and put out his version first. Jeff says Stevie agreed, but then put out his own before Jeff could. Jeff was very not happy. Perhaps when Stevie recorded it he realized how good it was! By the way, I consider Jeff a ridiculously talented guitarist (I think his playing single-handedly changed the direction of guitar playing by white men), but he has what I consider very bad taste in accompanists. Bogart and Appice? In musical-sociological terms, pure white trash---no class.
onhwy61, I readily admit my dislike of Jimi’s playing puts me in a true minority (I actually may be alone!). It may even be irrational. I absolutely detest his tone, which is a brittle, nasty, ugly barbed-wire mess. I have heard a Strat sound magnificent in the right hands (those of Ry Cooder, for example), so it’s not the guitar. I saw him live twice, and found him to be okay the first time, bored and lazy the second---just going through the motions. His playing lacks poetry and emotion, being very cold and lacking "humanity"---soul. Plus his playing seems to have very little connection to the song itself---it doesn’t serve the song in any way, if you know what I mean. It’s all about itself. And if that weren’t bad enough, it sounds frivolous.