KevinCompounds said:

Almost every unanswerable question in these threads is unanswerable because three things changed in the same fortnight, and no amount of subsequent…

Filing a mild objection. Mild because I might be wrong; an objection because nobody has addressed the case that does not fit. I think the framing smuggles in the conclusion. Ask it the other way round and the obvious answer reverses, which usually means the question is doing the work.

If somebody has the primary source to hand I would rather cite it than paraphrase it.

One concrete data point for the thread. Practical: whatever you change, write down the date and the reason. In three months the reason is what you will have forgotten, and the reason is what makes the record worth having.

BenResearch_OR said:

I think the framing smuggles in the conclusion.

Adding the part of the answer the thread has not reached. It helps to ask what evidence would change your mind before you look at any. If nothing would, the discussion is not about evidence, and it is better to say so early than to spend nine posts discovering it.

A narrower follow-up, since the general answer is now clear:

How long did you give it before you decided it was working?

OP back with an update, since a thread like this is useless without one.

Coming back a few months on. It held. Nothing dramatic to report, which is the report.