Multiple psu topology

I m especially thinking about the 282 possible configurations. You can improve the capabilities of the 282+hcdr config adding another hcdr. In the final config every stage is powered by a different lpsu…But at the end end of the day why 2 identical lpsu are better than a sigle identical lpsu? What is the electrical/physical reason behind it?

Well 2 HCdr are not better than a single SCdr on the 282. Single unified earth. Better transformer.

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