I thought (perhaps mistakenly) that the molded SA shunts were 1.0 milliohm?
http://www.ebikes.ca/shop/electric-bicycle-parts/ca-accessories/shunts/shunt-ca3.html
I couldn't find a reference in the 2.3 manual
https://www.ebikes.ca/documents/CycleAnalyst_V23Web.pdf
that actually said what it was, just that it came precalibrated to the included shunt, and that if setting a shunt resistance value, the best calibration is not to set it to the resistance, but to set it to show a correct reading based on a known-correct current reading.