Over the weekend I picked up a (pre-ErnieBall) early 1980 Musicman Sabre, sweet bass, and great sound. I'm wondering if I'm having a small issue with it right now.... I tried adjusting the pickup height to match the volume level of my other active basses, but the bass is still too quiet. On it's own it sounds killer, just not near loud enough. Apparently I need to start with my multi-meter and soldering gun and make sure everything is wired properly and works right. I do know the "bright" toggle switch is inop. But does anyone know what the pickups' resistance spec's should be on these?