Hope you found your day useful, I've been to some very good ASD related events and some I was desperate to leave.
Certainly don't rush anything on my account.
Anyways, I had some free time so I checked the webpage you suggested.
It highlights two human studies that find positive results for T3 supplementation in hypothyroidism:
A 1999 paper by Bunevicius.
and, more recently a 2009 paper by Nygarrd.
The first one is included in the systematic reviews of this issue I already linked to.
In case you didn't have a chance to read those, there was some criticism of small sample size, poor choice of wash-out period and less than optimal trial methodology.
But it's a perfectly valid paper.
It is opposed by 8 studies, often better in methodology than the Bunevicius that disagree with it's results.
That's 1223 vs 33 in subject numbers.
Now the reviews do some neat statistical combining to be as sure as we can be of the conclusions.
Which are that T3 appears to have no benefit over Thyroxine only.
I don't get the impression you think I'm a good judge of whether a research paper is good or bad so I won't add a personal opinion on the more recent paper.
I will say it included 59 subjects, unlikely to be able to turn over the weight of numbers against it.
The weight of the evidence does not find a role for T3 in thyroid dysfunction.
I wish it did as it might help the substantial minority who still have symptoms after treatment.
But it doesn't seem to.