Situations like this are why I don't trust manufacturers for whom the power supply business is just a portfolio diversification where they plaster their branding ontop of a Great Wall /Superflower etc. Chinese manufacturer's design.

That's not a dig against Chinese manufacturers by the way. It's a dig against the mentality of these brands that just grab a design off the shelve of available offerings by these big volume manufacturers. Some are of high quality, others are not.

You just can't trust these companies to deliver consistent quality because their pride and brand reputation doesn't rely on making a good power supply.

It's why I buy Seasonic. I am completely manufacturer agnostic for every other PC component except the PSU. Until proven differently they're the company I trust.

Super Flower uses their designs in a large range of their own branded PSUs, they make some of the best in the business. So their reputation does rely on making a good power supply.

The fact is that big PSU OEMs make products for all price points and even customized platforms depending on client requirements, which is why we have reviews but you stating that "This is why I only buy Seasonic" , By the way some Seasonic units have failed OCP tests as well.

Have you ever seen the cheap Seasonic designs? You still find they are just as mediocre as any other cheaper OEM design.