I've talked to my trainer, they ran a report and they think that the sensor is going in ok, but is coming out and then going back in.
When I had problems and called the Medtronic support #, the service rep used the term "pistoning" to refer to this behavior. I liked that. It seemed apt, evocative of the problem behavior it refers to.
I believe this could be a problem for both the Enlite & the older Harpoon, uh, Sof-sensor, sensors. Perhaps it was not as obvious (?) with the Harpoons because their longer sensor probe might have been less easily disturbed this way?
I also started CGM at the end of November. I have been using the Harpoons most of the time. Why? Because that's what I was prescribed ... though I was also given 4 Enlites by my CDE. The catch is that these Enlites "expired" back on Nov 16, so I can't expect much from the help line if I call support. Still, they are probably still working fine and thus worth trying/using, no?
How "tightly" did you overtape your sensor before your trainer suggested the "Skin Tac stuff"?
For me, taping is perhaps the second biggest learning curve with the Medtronic CGM sensors. After my experience with a possibly pistoning Enlite, I have decided to try to be a tad more "assertive" when I overtape all my sensors.
My plan is to see if stretching the overtape a bit when I apply it will help. My intent is to have the tape apply more tension to the sensor, holding it more firmly against my skin so it is less likely to "move around".
I got the idea from what is suggested/done in this "How to use an enlite sensor" youtube vid when the presenter describes @3m35s when overtape is applied">how to apply the overtape, especially the bit starting around 3m 54s where she mentions giving the tape "a little stretch".
It is mostly just a theory for me at this point. I did apply a second layer of "stretched" overtap to my current sensor and I think that helped. But these things take time to prove out, no?
T1 LADA since ~1980, first pump: Minimed 507, currently Minimed 723 + CGM