I have a tendency to go low around 4pm (that’s the whole reason I went on the pump in the first place) so my basal rate for a few hours around there is a tiny 0.2 u/h.
My highest is 0.9 u/h, so a 0.7 unit range. I’m surprised by how high your ranges are – I thought my requirements were pretty large, though, proportionally, my highest IS more than 4 times my lowest, quite a difference. Perhaps that’s a more accurate way of determining how ;