Hi sonic
A couple of questions if that is okay as you have done a JM1 build.
I have been very happy with my build. The body is perfect (although a bit weighty). I left the electronics as standard but the humbucker is not very good so thought I might upgrade that area.
I have a set of alnico V - 2 single coils and a humbucker and thought I might put those into the standard pickguard.
When I opened the control panel I noted that the pots were:
Volume - 500K
Neck Tone - 500K
Middle and bridge tone - 250K
The caps were "interesting"!
Neck Tone - .068uF
Middle and bridge tone - .047uF
I don't know a great deal about the electronics side of guitars so I thought you might be able to guide me.
What would be the best pot values to put in given I plan on two single coils and a bridge humbucker?
And what would be the best caps to put in given I would like to retain the same tone control i.e. one for neck and one for middle and bridge? I don't like the sound to be too muddy - my hearing is already muddy enough!

I would appreciate if anyone else also has any advice on the pots and caps.

All the best