Now that the spreadsheet has been filled in, I can see that the 65-75 were midcycle on a day when there had been a 1.0U shot in the morning. I don't know why, but I'd been thinking they were much longer after the last insulin shot. This makes me feel much more confident about re-starting insulin safely-- looks like that 1.0U dose was actually doing a great job, at least on that day!
I'm going to go ahead and tag
@Marje and Gracie on this-- I know she's not on currently, and usually she has a ton of tags to answer because she's quite popular

, but when she does get back on, she is one person who I think could either give you advice on a starting dose or else rope other folks into the discussion, if the question hasn't been answered by that time.
Marje, thanks for any help you can offer, and here's a quick recap: very recent diagnosis, shot 1U Lantus bid for a few days without testing, started testing and has gotten sub-200, and mostly sub-150, pre-shot numbers ever since for the past several days. Newbie and limited monitoring ability on most days mean that we've been advising no-shoot on those numbers, but it's clear that there will be a need for
some insulin since numbers without insulin are blue, not green.
So, the question is, what will be an appropriate (re-)starting dose, and when should she start?