PMPS: 5.0 (90 US).
After much discussion with one another earlier today, we decided to try a 0.25u reduction (i.e., from 1.75u to 1.5u), starting tonight, as we've been a little concerned with the rapidity (relatively speaking) with which Boo's nadirs are falling, even in the face of an accidental under-dosing 24 hours ago. (Since both TheNewTeddy and I will have to be away from our place for a few hours tomorrow, we didn't want to risk a further BG nadir fall without either of us being there to fully monitor it.) We're still waiting to encounter a dose at which we'll see a (hopefully only temporary) 'stalling' and can then work on increasing complementary treatments to enhance Boo's healing -- but 1.75u doesn't appear to be that dose.