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2017 R2 Vs 2020 R2

I just recently converted a 2017 R2 program to a 2020 R2 Program.  I have a few diameters .128 inches that i'm checking with a 1.5mm scanning probe.  I'm taking 6 hits on 180 degrees of the holes due to the probe angle not being ths same as the hole angle.  With the 2017 program, it'll report .1285 which seems right when checked with a pin.  The 2020 Program reports .1275.  The programs are generally identical asside from minor changes in the pickup.  The 2017 used a Readpoint and the 2020 program is using a fixed external alignment recall and going from there.  Other than that, the programs are identical.  Any suggestions?