I have a few questions. So last week, jamming, and i hit the bass off of a table, by accident. This broke off the tone knob! D'oh! being that my bass is somewhat vintage, I'd like to try and keep everything original as it is currently... is it possible to change the Pot-shafts? I don't think it is, but it's worth a shot, eh? so if this somewhat of an impossible job... I just need to pickup a pot of the same make/resistance? does the make of pot actually matter? so if i buy one pot of a diff. manufacturer, i'll need to replace the other, correct? and last , but not least, is it possible to have more passive controls? i.e. a passive bass/treble (stacked) pot? If so, what would be the difficulties? thanks all, i didnt find anything in my searches, so lets hope these Q's havent been done to death! thanks!