Both oils have high Calcium content i.e. both have more than 2500 ppm of Calcium more like 3000, strange your mix shows only 2329.
I think they should retest it.
Here's a homebrew I made of equal parts SL M1 0W-20, and Delvac 1300 15W-40:
If I did the conversion right, this oil is 11.9 cst at 100°C. I think this looks like a great mix to run in my Accord 4 banger until I use up my 0W-20, what do you think?