I have never had this problem and earlier in the year doing a different clinical trial, I was put into the high end range for an extended period of time and never lost my G6. I don’t know how high I got, as they remove the sensor and pump is off. They don’t want you to know what is happening. But after one session I was so high, I felt like throwing up, so it was up there. But with the IV going, it was very easy to bring the levels back into line. I never saw any drop outs with the sensors and when reviewing the download later I was well over 400 for a few hours. Not a fun place to be but so necessary to see if this stuff will do what it is suppose to do.
I have been using the G6 for almost a year now and love everything about it. I loved my G4 but wasn’t as accurate as I wanted. I was concerned at first because my pump would turn off based on sensor numbers. But I have finally learned to just let go and let it do it’s thing. I have never once had any issues, so for me, for me, even if it was off somewhat, it still works. And I am pretty sensitive to insulin, currently use 1:80 for corrections and have never had a problem.