Following on from claudia_zurich — and this may be the naive question:

What a vetting checklist should actually contain, as opposed to a list of things that are easy to fake?

Dr.ReproEndo said:

The pattern that distinguishes a bad batch from an exit is behaviour rather than product.

I read this differently. The confidence in this thread is running ahead of the evidence, and I would rather the uncertainty were stated than smoothed over because it is unsatisfying.

Dr.ReproEndo said:

The pattern that distinguishes a bad batch from an exit is behaviour rather than product.

True, and it depends on a baseline nobody has stated. Without knowing where someone started, the same number can be an excellent result or a disappointing one.

Dr.ReproEndo said:

The pattern that distinguishes a bad batch from an exit is behaviour rather than product.

Thank you — that is the clearest version of this I have read, and I have read a lot of them. Taking it to my next appointment.

Adding the clinical framing, because it changes how the question reads. Order of operations matters more than any single choice here: establish a baseline, change one thing, wait long enough for it to express itself, then measure again under the same conditions.