You have to look at it this way. If you are a Home enthusiast and you want a "good" calibration result then an EDR will work fine if you have one for your meter and Ted has given the ways to get them for the i1D3 or if you have a C6. If you want more precision then an i1Pro2 or something similar to profile with works well. If you want more precision then you are going to have to invest in a used or new Jeti or CR spectro. Just depends on your budget and degree of accuracy you want to achieve.I'm not sure I understand, are you saying that Spectracal are sending out counterfeit NIST certificates?
If I understand @WiFi-Spy's posts correctly, the same applies to the WOLED EDRs for the 2017/2018/2019 oleds that they supply within Calman as well. That is what completely put me off the (rather reckless) idea of buying an i1Pro2 which I'd only use a few times.