After using xdrip, miao miao and smartwatch for 1 year now, I would just like to say thank you to all the people involved in xdrip etc, I have been using the freestyle libre for the last 3years and finding xdrip made using libre just so much better with the pridictive alarms low high alarms and more than anything being able to calibrate xdrip when ever I felt the need to correct the libre which I have always found not to stay accurate enough for me, but the time has come now for me to Change sensors for Medtronic sensors, so I will see how I get on with the change and of course I hope one day to be able to go onto the medtronic 780g but for now it will be the 640g