I have not posted for several years. My dd is off to college next year. Until now things have been running pretty smoothly the last few years. She has been on an Animas Vibe and Dexcom. This past week we tried the MM 630 hoping to transition to the 670 before the next fall. Problem is the MM 630 has suspended most nights this past week when she was not low. Sometimes she is over 100 higher than the MM thinks. Last night the MM thougtht she was 40 and suspended for 2 hours. She could not get it to redeliver basal. She was 165 according to her meter and Dexcom. This morning the MM refused calibration and wants a new sensor. We just did that yesterday. She has continued to wear the Dexcom this week since the sensor was already in. Dexcom has been much more accurate than the MM. Anyone else have trouble with the suspend on low feature? We are now thinking this is not how we want to send her to college.