Thanks for the explanation, sounds like a nice option to have. It would be great to hear a recording of your bass that has this feature. Is the push/pull feature on a Novak BS/DS the same parallel/series wiring?
I'm still fine-tuning the electronics in that Starfire, since installing Nordstrand Big Singles, but as soon as I have everything working optimally, I'll be happy to share some more samples!
The Novak BS/DS push/pull is different. In that case, it is all one full Bisonic spec coil. The Dark Star spec coil is the same but with less windings, so the push/pull in this case allows you to essentially bypass a portion of the Bisonic spec coil, resulting in the Dark Star spec mode (less windings on coil). So in both BS and DS modes, the Novak is still a single coil.
Series/Parallel requires at least two separate coils, each with their own set of magnetic poles.
For now, until I get to some more recording, here's a jazz bass with S1 switch comparison. Admittedly not the best as I think he's got some compression running (which can minimalize the contrast between modes), but at least he's not just beating the heck out of it with a rapidfire thumb like most demos these days:
And here's a visual: