I just tried out playing slide a few days ago and I am hooked! I have spent the last couple of days trying to determine which of my guitars to set up permanently as a slide guitar (i.e. put some 11's on it and raise the action slightly). My thought was that my beater Epiphone LP Junior that I put a P-90 in would be the perfect slide candidate. Unfortunately, in spending hours swapping between the options, it finishes 2nd to not only my ears, but also my wife's and son's. The Squire Strat was a distant third; didn't spend more than a minute with it (way too clean). The clear winner is a cheap (free) Les Paul copy that started life as a Bud Light promotional guitar that I made a poor refinishing attempt to turn it into a gold top. I hate my refinishing job so much, that I relegated the guitar as my bedroom guitar (where it is rarely played). The humbucker just sounded fuller with the slide than the P-90. The P-90 was certainly clearer, but I couldn't EP away the shrillness without killing the tone. Every time that I thought that I had the P-90 Jr sounding good, I'd swap guitars, and the gold top would blow it away. This is a crappy fake Les Paul with cheap electronics and what I believe to be Epiphone ceramic humbuckers. I love the P-90 when playing normally, but it appears to be the opposite when playing slide. I know this doesn't really sound like much of a problem, but I would like to really dedicate myself to playing slide, and I don't want to do it on a guitar that I hate. So maybe a new humbucker guitar is in order? Maybe an SG? Or do I keep working with the Junior to try to get it to sound better- admittedly, it has a low action and 9's on it currently. I just don't know if what my ears are telling me is inherent to a P-90 vs humbucker.