The line up he might be referring to is that the bottom of the 1-8-2 are aligned on the small date (sorta). I never use it because there are so many other obvious diagnostics. Hence my "irrelevant" comment.
Yes that is correct Corgi. Except his large date doesn't line up and it's not a great marker. Shape of the 2 the distance to the rim, the snowman 8 are all stronger.