Somewhat unexpectedly, I have come home from the hospital today with a new pump. After rather too many ambulance call outs for severe hypos, and my trust being alarmingly keen to get me on the waiting list for a transplant they have decided an NHS funded CGM with predictive low suspend insulin pump is worth a try. I won the prize for most number of medical devices attached to me this morning: a turned off omnipod, a dexcom sensor; new Medtronic pump and; enlite sensor. Now I have tubes, interesting. So I've experience a low suspend already. But it stopped for about two hours. How does it decide to come back on? I don't understand what it's making its decisions on. If it predicts me going low but I've treated it is it going to know I'm fine & give me back the insulin? And then I went high after, because I spent 2 hours without any insulin, which seems blindingly obvious - hopefully not literally. Can anyone help with how the 640 works - when it suspends insulin what needs to be happening for insulin delivery to resume? @tim2000s do you use a 640, can you give a girl a clue?