Sorry i havent been here for a while. The baby takes up so much time. The Navigator is working great, i love knowing when im gonna be low or hi. Just knowing minute to minute is great, As far as the calibrating, so what do it when you go to sleep. I wouldnt trade it for anything. I also love the omni pod. love having no tubes, i actually dont mind being a diabetic. I cant wait for my next a1c. last one was a 11.