BaZi from the same instant as the Western charttrue solar time, solar year boundary
The pillars add proportion to the Western chart: what is scarce, what is overfull, and which decade turns it.
Traditional Four Pillars needs a sex to read certain positions. It changes the direction of the ten-year pillars and nothing else.
The wheel and every placement, to the minute of arc.
Where each planet stood on an angle. We draw no line past 400 km, where custom allows 800 and more.
Two traditions, each read by its own rules so neither borrows from the other: how you are built, what is rare here, the long arc of your years, and the conditions that suit you.