gary_naperville said:

Update — I was wrong in the opening post, specifically about the direction.

This matches mine closely enough to be worth saying so out loud. I had assumed I was the exception until I read this.

gary_naperville said:

Update — I was wrong in the opening post, specifically about the direction.

Adding the part of the answer the thread has not reached. 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.

Correct me if the detail matters more than I have assumed.

Adding the numbers, since they settle part of this. One practical note: write down what you did and when, before you need it. Reconstructing a timeline from memory three months later is how people end up unable to answer the one question that would have resolved it.

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

What would you measure differently if you were starting again?

kate.chem said:

One practical note: write down what you did and when, before you need it.

This is where I part company with the consensus forming above. The counter-case has not been addressed. Somebody upthread described the situation that does not fit, and the thread moved on rather than engaging with it, which is the failure mode this board is supposed to avoid.