William Duffield
I think the review which gave the Narex Richter chisels high marks was by James Wright (wood by Wright YouTube channel). Coincidentally, I watched it last night, before reading this thread.

https://www.youtube.com/watch?v=hYDLQ_gydhc

It's a bit of a shame that he spent so much effort on the testing and the spreadsheet summary, without having the Unicorn enlightenment. Another column of data contrasting pre- vs. post-buff would have been very useful, but i suspect it would not have helped the HF plastic handle objects enough to get them reclassified as chisels.