I love the nice round sound I get from my newly refinished and upgraded P Bass. It has a DiMarzio Split P humbucker in the standard P Bass position. While this is good for a thick sound, I'd also like a brighter sound for slapping and popping. If I were to add a J style pickup to the bridge position, would it enhance the highs? Or is it more of an amp thing? I have a Peavey Databass, which only has a 15" speaker in it. Any help would be appreciated.