Thanks for the feedback.
The Mint tractor I ordered came in.
Originally I set up my cartridge using a Mobile Fidelity Geo-Disk.
The first thing I did, after receiving the Mint Tractor, was check the effective length and overhang, which was off by approximately 0.5mm according to the Tractor.
The line of sight on the Geo-disk is about 0.5mm thick so I must admit the Mint Tractor is a precision instrument.
Initially, the thought crossed my mind that maybe the Geo-disk set-up was close enough.
After thinking about it for a while, I decided to go ahead and adjust my cartridge to the Mint tractor.
The Mint Tractor is about the thickness of a 200gm record and I usually listen to 200 gm records about 22-26 clicks higher than at the setting I use for my thinnest records. So I initially adjusted the VTA to that setting using the VTA adjustment on the JMW 10.5i.
I then followed the instructions for positioning the cartridge and Mint Tractor for effective length and overhang, which took several iterations. When I was done I adjusted the Azimuth since it was slightly off. I checked he effective length and overhang to verify that it had not changed.
The Mint Tractor instructions suggest resting at this point and after an hour and a half the preliminary part of the set-up, I was too tired to continue. I waited until the next day to finish.
Afterwards, I listened to some old records that I bought used. They sounded unbelievably good. The Mint Tractor is nice upgrade to my system.