Does anyone have some tips for how to use a multimeter to track grounding issues? I’d like to be able to track between output jack and pots, pot to pot, pots to switch, pots to pick-ups, etc.
Any DC K reading/setting on the meter will do. You are looking for continuity (0k) to confirm a good contact. If the meter fluctuates or takes a long time but gets to 0 eventually this is a suspect joint. An error reading or the meter's open symbol means a complete joint failure.