QSC customer service review — my results so far

NurseLeah_Nash said:

It helps to ask what evidence would change your mind before you look at any.

There is a second half to this that has not been said yet. Take it one variable at a time. Almost every unanswerable question in these threads is unanswerable because three things changed in the same fortnight, and no amount of subsequent argument can untangle them after the fact.

That is the short version; the long version is somebody else's post.

One concrete data point for the thread. If you are going to change something, change one thing and give it long enough to express itself. Four weeks is the usual minimum for anything pharmacological on this board, and two weeks of data has told you almost nothing.

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

What would you measure differently if you were starting again?

HPLC_Greg said:

If you are going to change something, change one thing and give it long enough to express itself.

I read this differently from HPLC_Greg, on substance rather than tone. Not convinced. The evidence being cited is consistent with the conclusion and also consistent with two other conclusions nobody has ruled out.

Closing the loop on my own question.

Update: the thing I was blaming turned out not to be the cause. Leaving the original post as written rather than editing it, so the mistake stays visible for whoever searches this next.