I need help over here people, my bass it's not working properly. Here's a picture of it: The configuration of the controls, from neck to bridge: Humbucker volume Slip-p volume Master tone Here's the problem: The Humbucker works just fine... but the Split-p (Kent Armstrong) volume doesn't go turning up slowly like it should. It's in complete silence and when it gets to '7' suddenly it turns on, almost like an on/off switch. And from the 7 to 10 works normally, but doesn't seem to be as loud as a p-bass pickup should. Plus, the tone is working as volume too. When the volume knob is 0 and the tone is 10, it sounds like the volume it's at 3 or 4 (and tone at 10). When both pickups are at 10, it sounds almost like it's only the humbucker. There's a difference, but it's hard to notice. What's the problem here? The volume knob, the pickup itself or the wiring? Or maybe everything? Help me, please!