Here we are, lads....
Tonerider ACII with a series/coil split/parallel switch where the tone pot used to be and the tone pot shifted to the old output socket spot.
The new headstock design....
... and as she is now,
I've sanded the back of the neck right down to 2000 grit and oiled it very, very lightly with Lizardspit, and it is beyond delightful to play!!
The pickup is just a monster; the impedance readings were switch up (series) - 2.2kΩ, middle - (coil split <north>) - 4.21kΩ and down (parallel) - 8.25kΩ but don't let that fool you; there is very little volume loss between settings!! Would someone please explain that to me, because I don't know why that should be so!!
The tonal differences are quite marked or quite subtle, depending on what outboard stuff I have dialled in, but at no FX with the tone approximately in the middle, the difference is subtle and if I had to quantify them I'd say that parallel is balls out, full on h/b noise - will do Peter Green or Slash with aplomb; coil split is a touch "thinner" as you'd expect and series is like parallel but with more pronounced hi-end happening.
I do know that I like it - a lot and will upgrade my first PBG kit with Toneriders of some stripe; just epic bang for the buck!!