Every time a read an article from FWW regarding table saw alignment or
miter gauge alignment that involves trial and error test cuts and
plastic squares, a little bit of vomit climbs my throat. Never do
they mention the more accurate methods that involve a dial indicator.
Why? Do they assume their readers are not smart enough to pick it
up? Do they think their readers can't afford a dial indicator? Do
they themselves not understand the principles behind proper alignment?

exhibit A: http://tinyurl.com/275ccl6
exhibit B: http://tinyurl.com/2ayvqvs