@matt2024 I’m not sure I understand your calibrating technique “one thing that I have learned is that if you are off by too much - don’t try to calibrate the difference all at once. I usually halve the difference over a few hours and that seems to help dial it in without errors”. My Dexcom app says to select calibrate, enter the blood sugar of a finger stick, confirm. Then after what seems like a long time the new number shows up on the home setting and a little dot appears in the correct spot on the graph. (Then eventually these updates get communicated to my Omnipod 5 insulin pump). Could you explain more about your calibrating strategy?