Nice job, I enjoyed it.
What was the software you were using?
I use LabVIEW.
Voltage drop measures at 10.00 Amperes
Using large body HRC fuses
Brymen, BM869s, 312mV
UNI-T, UT61E, 239mV, Modified
CEM, DT9939, 350mV
UNI-T, UT181A, 294mV
Fluke, 115, 280mV
AMPROBE, AM530, 353mV
Fluke, 107, 325mV
Other...
Cen-Tech, 98025, 131mV, No fuse
External Shunt, 10mV
I made one more attempt to further improve the UT61E by adding even more copper and reduced it another 20mV was all.