Opposing Stepper Wiring

If you are using dual endstops, the wiring is independent, so it’s neither series nor parallel. I couldn’t be sure exactly which sentence you’re referring to, but it does imply that you should use series, or dual.

But dual is independent, not parallel.

Probably didn’t edit that sentence from when we started. We used to run the steppers in parallel, then it was found that series was better.