Sorry Emmotha, wasn't meant to sound like I was disagreeing/arguing with you, just not sure I fully buy Abbott's argument. I also think Robert72 proves that as his first experience is different to the rest. Either way, I see a good argument for benefit in attachment 24hr prior to activation, personally.
Good luck on the low carb diet - I swear by it. I have massively reduced my insulin use because of it. My Libre started properly functioning (not reading low) about 12-16hrs after insertion, after I went to bed I believe last night. Here is my graph so far:
Just to explain the key - I put arrows in orange where I had my main meal, and snacks in purple. The blue brackets at the bottom are periods of exercise - the first is 30min weights/30min running, the second is 45min indoor football (not intense though as shoulder is sore from procedure yesterday!).
You can see from the starred readings when I first activated the sensor that they were coming 1-3mmol/l low. Then my first blood reading at about 5am showed 5.8 (using Libre with Abbott's sticks) and the sensor said 5.2. Was happy with that. It got better though, 2hrs later blood said 6.4, sensor said 6.2/6.3. Then at about 2:30pm blood said 5.5, sensor 5.2/5.3, 5pm blood was 4.8 and sesor 4.4. Am very happy with those readings and would expect to see that variation just from pricking two different times on the same meter.
So I'm quite happy with it. No pain for sensor insertion or after, I have lifted weights, run, showered twice and no problems but straight away put physio tape over it.
The other interesting thing is that it seems I drop a bit low in the middle of the night possibly (depends if sensor was accurate then) and also exercise does / can raise me out of the "target zone", but it comes back down fine.
J