I have experienced a problem when my pump delivers a Control iQ dose to bring the glucose level back down. I don’t know when the pump does that. Then, if I go in shortly after, say one minute later, I use the pump to tell me how many units to pump in.
I have found that if I do this pretty soon following a Control iQ, my glucose drops too far by the time the insulin is used up. I have not discussed yet with Support, but have it on my list for next phone call.