This has been bugging me for a couple of days, and i know it would be a ton of work and money to do, but.... Would it work if I installed half of a P-Bass pickup under the D and G strings of my bass and have separate volume, output, and on/off controls? My reason for doing this would be so I could play bass lines on the E and A strings with my left hand while my right hand taps chords. I think it would be useful so the chords or harmonics could be distorted or have some other effect applied to them while the bassline remains clean. Not only that, but I could get a nice blend of clean/distorted because the bass's stock pickups would still output a clean signal for the D and G strings. EDIT: I drew a real quick picture in paint. Its a crappy picture, but it gives you a basic idea of what i'm thinking. What do you think?