Has anyone used a Darkglass Tone Capsule preamp with a bass that does not have knobs for seperate bass, mid, treble? I have a Spector Rebop 4mm with three knobs (1-master volume/push-pull 2-bass 3-treble). I am not a fan of the tonepump preamp and am looking to go a different route. I noticed that the supplied pots and board have proprietary connectors and looks like I would need to have 4 knobs in order to be able to use the preamp. Can the tone capsule be modified to use a stacked knob pot?