Axis Sport questions – routing and wiring

1) Can anyone tell me if the SSS models are routed for a bridge humbucker or if it’s just the HSS models?

2)If I wanted to change the pickups, does anyone know if single coils have to be wired to a specific spec for the silent circuit to work? If so, what spec?

3) Is the bridge humbucker on the HSS models the same as the regular axis?

4) Same neck as axis?

Thanks!