I agree with your analysis, but it is the opposite of what I said, I know how to convert, thank you. The problem is that the figures given by NICE and DVLA still seem to be for the days of whole blood. so taking my example from the other night, my NEO (whole blood) measured 4,1, my SD Codefree (plasma) read 5,7, and my new CareSense (also plasma) read 5,6. So which is closest to the 3,9 quoted for hypo? Consistently my NEO ties in with my physical symptoms of hypo, but I have had readings above 6 from my Codefree. But it is within the 15% allowed by ISO so is technically reading accurately but giving me a bum note. The Codefree says I can drive, my NEO says I am close to hypo, and shortly after my body proved it. So, should I multiply the data given by Daisy1 by 12%, or divide my plasma readings by 12% each time I measure? I think that the data given to us should be changed so all users of the new plasma meters can relate their measurements to the ranges without having to convert every time, That is my stance unless someone can convince me otherwise. It is one thing changing meters from one standard to another, but the target information must also change to agree. Abbot meters are not changing, and My NEO from Sept 2016 is definitely whole blood. My XCEED was also wholeblood (2015).