What's the diff.?? Over the last year or two I've gotten more comfortable with adjusting my pickup heights (amazing what buying a ruler will do for you), and I have a pretty good handle on the general effect this will have on single-coil pickups (your typical Strat/Tele type). Higher = more output, more treble, what I call a more "focused" tone, while too high = too much of all that, plus the possibility of the pickups' magnetic pull screwing with your string vibration. Meanwhile, lower = a more mellow, "wider" tone, perhaps more balanced with respect to high end vs. low end, while too low = too little output, or not enough "focus". Humbuckers, however, throw an extra element into this, due to the fact that you can raise or lower the whole pickup as with singles, plus you can raise or lower the individual pole pieces on one of the coils. I'm familiar with matching the adjustable pole pieces to the guitar's neck radius, as well as proceeding from there to compensate for differences in output from string to string. But how does one go about deciding whether to mess with the pole piece height vs. that of the whole pickup? What process do you typically follow when setting the heights on a guitar you just got? What general effects can one expect, as with raising or lowering single coils as I described above? Does the same generally hold with, say, mini-humbuckers? What if the pole pieces on both coils are adjustable? What then? On a related note, say your guitar has coil-splitting capabilities. Does it matter which coil (adjustable pieces or no) is the one active in single mode?