For a very long time I’ve been thinking about putting together a low cost  ‘parts’ Precision bass guitar for fun, and finally after much research I’ve made a start and bought the bits I need to get started.  I have a couple of questions which I’m hoping someone can help me with. Please bear in mind that this is the first time I’ve done anything like this and I don’t really know what I’m doing.  Firstly, pots. 500k or 250k (I’ve seen both types offered)? What’s preferable? Assuming my b