Just for balance, can someone please link to the article on the problems with ABX testing? I think Bob S mentioned it at some point in the recent past but I can't locate it just now.
The problem with "definitive" 'opinions' like those implied by the linked article above is that it unintentionally (or otherwise) ridicules anyone who has a difference of opinion or experience.
the delicate components should be equiped with the best power cords first
Th question is then what do you mean by 'best'. If you simply mean 'most expensive regardless' then I'll politely disagree completely with you. If you read my post (linked above) you'll see that 'best sounding' was difficult to judge in my home demo's of several cords vs M stock cord. Definitely 'different' sounding but not necessarily 'better' so I stayed with stock.
FWIW I do use some more expensive cables on other items so I'm not landing in either punch or judy camp.