Most tablesaw cuts require the blade to be set perfectly at 90 degrees to the table. As a check, I used to crank the blade all the way up and set a square between the table and the protruding portion of the blade. I had a hard time discerning the tiny gap that might appear over the 3 in. of exposed blade.
Happily, I discovered a way to use the full diameter of the blade so what would be a tiny gap across 3 in. of blade, becomes a much larger gap across the full 10-in. dia. With the throat plate removed, I set a combination square down through the table so it bears against the entire surface of the blade. Even if the blade is off by only a fraction of a degree, it’s easy to see.