Cut under C4, sorry

Thank you mictester for providing the schematic that I used. Sorry if there are any mistakes. First time to convert a schematic to a layout and also to use software. Use at your own risk.

I have a couple of questions. First, I notice the schematic only shows one pickup, this seems unfinished to me, how would hooking all the pickups through the same lead through both pots allow adjustment of each pickup? Can someone clarify how the pickups know which pot is intended for them or what I...