Hello Justin.<br>
In step 3, the procedure has you configure in 2-wire mode, not 4-wire. Is there a procedure you are using in your version of the manual that includes a 4-wire mode adjustment for the high(100 MOhm) range?<br>
Here is the version I am using:<br>
<a href="https://www.tek.com/en/tektronix-and-keithley-digital-multimeter/2110-series-5%C2%BD-digit-dual-display-usb-multimeter-manu">Model 2110 5 1/2 Digit Digital Multimeter Calibration Manual | Tektronix</a>