I am not sure about the Universal, as I do not have one, but my older Wally Tractors have parallel lines scratched in a mirror that allows the user to eliminate parallax while aligning the cantilever. Look over the instructions to see what I am talking about.
As with all recommendations of the Wally tools, understand that there are considerable problems actually getting them from Wally. Do a search here and on othet boards for more information.
As with all recommendations of the Wally tools, understand that there are considerable problems actually getting them from Wally. Do a search here and on othet boards for more information.

