OK, I see.

I'm just asking about the tone controls because just having one there makes a big difference to the pickup sound. The cap value less so (affects the tone when the tone control is turned down but very little difference to the high-end with the tone control fully up), but I'd certainly add a fixed resistor and cap in series to earth to simulate a tone control get a more realistic idea of what the pickups will sound like when installed (maybe a compromise 0.033uF cap rather than a 0.047uf or 0.022uF). And rather than just one resistor I'd add add a mini-toggle to switch between 250k and 500k 'tone pot' resistors for use with single coil and humbuckers.

In the same way I'd also wire a 500k resistor in parallel (via a switch) with the volume pot, so that with the switch connecting the resistor across the pot, you simulate a 250k volume pot for use with single coils.

All simple to do (three resistors and a two switches) and makes the rig a far more adaptable and realistic environment.