Jerry, I can certainly see the advantage your setup has over the eyeball technique. I briefly considered building a simple jig to keep things square…nope. I did keep a close eye on the contact area while surfacing and will check and adjust often while things are wearing in. My moto of late has been to just try and make things better than they were.

We’ll see if this is better


RonR


1951 3600 with Clark flatbed, T5, 4.10 rear
1970 340 Duster
1990 5.0 V8 Miata (1990 Mustang Gt Drivetrain)
1964 CJ5