Can I have a switch that makes me play better?
With passive electronics, you cannot add something that is not there. All a passive "goodness" control is is a "suck bleed" control. So you cannot make yourself better on an absolute level. You can just make yourself less bad by bleeding of some suckage to ground, which makes you seem better on a relative level.
Chris, according to Itsabass's logic, I guess you need an active/passive goodness control, so that suckage bleeds off to ground, and goodness goes to the amp. Gives you more of what you have, and less of what you don't want.
My coil-swap mod can be pretty cool too. It puts the screw coil of the neck with the stud coil of the bridge, and vice-versa.