I have a Gibson Historic reverse Firebird III. I am not too happy with the tone of the stock pickups. They have a kinda chuncky tone to them and the highs are brittle sounding. I'm looking for ideas for replacement pickups. Tone wise, I looking for something that has more of a single coil sound. The only condition is that they have nickel covers. Awhile ago, Tone Quest did a report on Dimarzio's and recommended them. Anyone have and hands of experience with them? I have also heard that these pickups are potted with epoxy and as such cannot be rewound.