I have a Korean-made Sheraton II. I put a Burstbucker I in the bridge and a Seth Lover in the neck. These two balance very well, output wise. Both use A2 magnets and both are unpotted. I think they are great. They have less of that thick sheen that potted pups, like 57 Classics, have (at least IMO). I haven't tried any other PAF-type humbuckers, though.