I stand corrected. I have been informed that there is recent DKA in the picture for Chloe. That would argue for a dose more like your existing dose on Prozinc. However, you will need to monitor more frequently than you have of late, especially for the first few days of Lantus. How is the ketone testing going? At this point, you should still be testing daily.
Out of curiosity, why the switch to Lantus? Any other medical issues in Chloe's recent past?