So 3hrs after polishing off the wife's chicken noodle dish I was feeling pretty smug with my glucose levels - only to discover a massive overnight rise upon waking this morning! Sigh. But anyway - as this thread is about inaccuracy of the Libre I thought I'd do a few measurements with my trusty Glucomen at the same time. (Libre sensor was applied Thursday evening about 4hrs before activation and seeing the 3.3 reading). When I tried something like this before, the Libre was reading lower at the bottom end of the scale and higher at the top end. Looks like this one might be consistently lower.