OK got it. The secret is don't match the coils. If you want single coil tone USE a single coil. I can see why maybe a sidewinder bucker might be a better idea? It wouldn't have these same problems correct?
Not quite. A sidewinder has the same issue with mutual inductance as a stacked single because the coils are also coaxial and antiphase. It's only not a problem if you can somehow work it to your benefit.