There are many threads devoted to the Dexcom systems, but very few mentions of the FSLibre system. I was on the G4 and the G5 Dex and found little success. So, I moved over to the Libre.
I have found that although when I am properly hydrated, my Libre is pretty accurate, but sometimes it can be quite off the mark, either reading 20 points below what my finger stick reading is or sometimes 20 points higher. I have pretty much learned to ignore direction arrows that don’t make sense or don’t feel right, but sometimes they do help.
That all being said, I would NEVER make any treatment decisions based upon the Libre reading. I would not bolus; I would not correct.
You may wonder why I even bother employing it. But the fact is that it does give me a sense of an approximation of where my BGs are going, so long as I am aware of how a particular sensor has been reading (lower or higher or mostly accurate). There is no way to calibrate the Libre, so I just wait for it to “catch up” with any potential lag time (it usually does within about 15 minutes if it is falling behind (exercise is a main reason, or perhaps sleeping on top of it, or even sharp upwards or dropping BGs)
Please share your experiences with your use of this system. why you chose it, how you like it; I am dying to know, as I can perhaps learn from this.