This is the only scientifically relevant portion of your post:

That's not even a blind test. It's not even really a test at all! A blind test would mean that you knew who had the fake plates and who didn't, and thus you could skew your own results.

The purpose of these types of tests to to actually differentiate the placebo effect (as would be seen with a fake plate) and whatever effect the actual plates have.

Moreover, myself and others can and have duplicated the described reported effects using placebo alone.

I will refer you to this video which will hopefully show you the sheer power of psychological placebo effects:

We're not equipped for that kind of tests, I doubt there are any identically looking fake plates manufactured, they would have to be probably specially ordered from that company, as semi-finished product.
But I think it's significant, that we have a practically 100% success. The worst response ever we had, was one doctor who claimed that these tablets doesn't work, but she probably changed her mind afterwards, because she didn't demand her money back, though she knew she could do it. Honestly, I don't remember that anyone of our customers ever wanted to return their money and tablets. I used to fetch the mail daily for years, and there were only orders for new tablets, and sometimes a shipment of supplies came, but I've never seen a pack of returned tablets. Maybe there were some, or more complaints, I'd have to ask mom to be sure, but right now my trusty long-term memory can't dig up anything.

Btw, my imagination is limited in that, what would be the estimated placebo effects if such an experiment would be performed? Would a placebo group report a much lesser efficiency of tablets, than 100%?
I mean, Tesla's tablets can have very significant effects...for example, it's good for easing the pain of common wounds, but as paradox, it makes burns to hurt hell a lot more.
 

Lol... Yeah. New Age is, at it's majority, a synonyme for seeking, and being less or more under some illusion, then exchanging it for a lesser degree of illusion, and so on. It's a long process, there are many parallel ways, and everyone has their speed of progress. The most advanced and condensed knowledge doesn't feel right to a person, before he/she gets rid of some illusions.
That NA chick (truly hot and cute) simply has still a way ahead of her as we all have, and I think she will go that way quickly, according to the ease she handled such an illusion loss.  I don't know, how I would handle that, I didn't have any greater "crisis of faith" ever in my life...everything went smoother in that direction.
As for me, I probably wouldn't notice I still have the ring as well, but the stuff like "giving the puppet a soul through my ring" wouldn't work for on me at all. I don't have the soul. I have no soul within. Soul has me, my body and personality is just a temporary sensory and  executive tool. And analogically, even if such a ring would be a part of me (nonsense, it's just metal) it would be an inferior thing, compared to me, having no power over me. It's a hierarchic structure, and such a ring would be way below both me and my soul.
Anyway, a lot of dealing with people is simply a fight of energies. You can feel a pleasant power surge every time you mischievously mock someone, when that cuts deep. Not that I accuse you of doing it, but you surely know that feeling. And also you know feeling drained, when losing an argument. Some people are like "energetic vampires", demanding attention, and sucking all energy they can, while whining and complaining on life. It happened to me a few months ago, and later I felt really sick, shivering and with headache, but I recovered next day without a real sickness. I swear, next time I'll send such people right to some church's confession booth, or to Jehovah's witnesses. I'll be polite, but cold, and screw a probable gosssips about my cold-heartedness which will be surely spreaded on local Hag-net.

Mr. Darren Brown, if he was that man in the video, probably is quite skilled in dealing with people, and energies. Anyone who is succesful in our society, less or more is. His trick could be an attack on all fronts, psychologic and bioenergetic.  Besides getting rid of illusions, it's about how your "chi" is strong A weakened person is more likely to give up an energetic fight with a travelling salesman, and to pay a lot of money for useless stuff.

That's right. Fortunately, they know themselves all their life and despite of these various circumstances, they can observe a relative effect on their own body and mood. Effects of the Tesla's tablets are various, but the experiences of customers helped to summarize a basic things which can be expected from them. For example, Tesla's tablets are beneficial, but should not be used in cases when a medical treatment is "harmful" or unnatural to the body, like chemotherapy, radiotherapy, or painkillers. In these cases Tesla's tablets acts against effects of this treatment. It's mainly supportive thing and should be used only if it's coherent with a main treatment method.

Yeah, I heard it. The problem is, that I don't know when, and my mother, who most probably mentioned it, doesn't already remember. Most probably it is one of parents' frients in a near city who tests the tablets by his own methods (which are based more on intuition than technics, when I yesterday asked about him) and to be sure I'd have to ask him directly, when he would come on a visit.
I know what I heard, (though it might be years ago) but for now the most reliable methods of potential detecting, that the Tesla's tablets does something, remains that herbal protein sweetener and it's molecular change effect (which doesn't occur by any other way and is very significant), and a subtle electronics, like the bus chip card. Both these cases we had seen personally at home, but unfortunately, both aren't immediate, it takes a time. At this moment, own body response is the most quick method I saw in practice.

Another thing, Wagner, who uses the same principle (just applied on different materials) has quite well made statistic researches on effect of this, as he calls it, "tachyon energy" on a growth of plants. He made some kind of "tachyonized" sand, which, when added to a soil of one bush, made the bush grow like 1 meter more than a comparative bush in non-tachyonized soil. There's a lot of it in his book, brochures, and so on. I can agree with that, I just don't like the way he uses these impressive research results on brainwashing courses for people, to sell them overpriced and shitty materials, which doesn't hold the "tachyonization" forever, but for rather a short time, maybe a year, then a customer must pay again.