Thank you for your continued work. These ColorMunki findings could explain a few things and unfortunately also raise some questions. So, may be this is why I often had "inconsistent readings" kind of errors during chart readings when I was sure I moved the CM correctly (from paper white to paper white, smoothly and slowly, but not too slow, along a locked plastic slider on a drawing board) and the printer wasn't "that bad". Should I declare any printer profiles I made since I updated to v1.5 unsafe or even false? This could be a bit problematic since I had this bad habit of recycling the papers in a few weeks after I take the readings (I use the photo papers for various non-printing related tasks as scratch material) because the thought of a scenario like this did cross my mind. But I considered it very unprobable, while difficult to keep the papers in a dry environment to preserve them for more than a few weeks anyway.