The company isn't well known outside of Canada,which is mainly due to the limited runs of the conditioners the result of extensive time spent in the real world outside of our little niche group of audiophiles.
You perhaps should pick up the latest edition of 'Phile- and read M.Fremers description of the new Shunyata power conditioners and learn about DTCD, which is the first device to be able to produce the kind of validation you are seeking.
He states the naysayers will still have their doubts even when confronted with the first measurable differences between power cords(and fuses), but they wanted proof, so here it is.
Perhaps you will find the new edition of Phile well worth the cost of the mag, or you could read it for free at the nearest Chapters.
I am not out to sell magazines for anyone.
I could say that my intent is just to enlighten others who have yet to discover the merits of a decent power cord and for the fence sitters to try one for themselves and make up their own minds.
I gain nothing by sharing my positive expereince,and am at a loss why others so persistantly deny that there can be any difference, good or bad.What's in it for them to do so?
You've stated, all components change over the years.At least you acknowledge that fact, most power cord deniers won't even go that far and say the whole "burn in" thing is a hoax.
So perhaps it's time for you to actually go out and borrow a decent power cord and have a listen.You don't have to buy one, there are lots of companies with trial periods and let's not forget to support our local brick and mortar audio stores.
My local store allowed me to audition power cords and over the course of a few days, (not one switch, a quick listen and out it goes)you get the feel for what the cable is doing.
At the very least, you could butcher one of those molded PC's and put a couple of decent ends on it and then compare that to a stock power cord.
If you can notice a difference between a hot rodded and stock PC, then you should have a bit of an idea about what you can expect from the better power cords.
Or like I said you could pick up the latest Stereophile and pick up where you left off.
Some things have changed in the interim.