I'd to replace the bridge pickup on my ESP P/J. It sounds OK, just doesn't have that bark and bite I'm looking for. I'm looking to stay away from a thin sound, which I know some of it has to do with the position of the bridge pickup. Still, some solid farty bite is a must, with decent low end. The P pup on this bass is absolutely fantastic, with a very nice growl and low end, so I am not looking to replace it. I generally like to solo one PUP or the other when I play. I am going to guess that a split coil pup would do the job better than a single coil, but will that give me as much bite? Recommendations?