The figures, for anyone assembling their own picture. If you are comparing against somebody else’s result, check that you are comparing the same measurement taken the same way. Most of the apparent contradictions in these threads dissolve at that step.

One thing that is still open after PharmacoVig_BOS’s answer:

What did you change at the same time, and can you separate the two now?

jason_paloalto said:

If you are comparing against somebody else’s result, check that you are comparing the same measurement taken the same way.

Coming at jason_paloalto’s question from a different direction. Worth answering the question that was asked rather than the one behind it. The narrow version usually has an answer; the broad version usually does not, and answering the broad one is how a thread stops being useful.

Closing the loop on my own question.

Update — I was wrong in the opening post, specifically about the direction. Correcting it here rather than editing it away.

carl_compliance said:

Worth answering the question that was asked rather than the one behind it.

Fair, and it stops being fair at the extremes. The middle of the range is well understood; the ends are where the honest answer is that nobody knows.