Okay I have a 97 FOrtress Flashback, which has two passive pickups, a J in the neck position and a JJ in the bridge position. The controls are Vol / Blend / Tone. I recently acquired a OBP-1 and wanted to put it into the Fortress. What do you think of the following rewiring: Pot 1: Stacked Vol / Vol Pot 2: Stacked Bass / Treble Pot 3: Push / Pull - Passtive Tone (pull up for series / parallel switching) and drilling a new hole for a small active passive switch. Is there a better way to go about it, or does this sound like a reasonable way to modify the bass without putting too many holes in the pickguard etc.