I was mistaken, it's also quite possible that your guitar was equipped with 300k pots instead of 500, which will definitely darken things up. However, I've heard of people with warpigs (far darker than the nailbomb) using 1 meg pots with lower level caps (even in big slabs of mahogany) and saying it's like a blanket's been taken off of their guitars. You could also try disconnecting the tone pots if you don't use them, as leaving them connected will take a little brightness off as well. Pickups take a lot of time and money, I'm merely mentioning things I'd do before taking one out. Regardless, best of luck in getting the blanket off of yours!