Calculators are just the facts of what the facts say. Adhering to it like it’s the end all is a bad idea. To many people here have there “Stuck” in the calculators.
I think there is worth in them. Though I love it more when someone goes quicker than the “Facts.” They are suddenly the “Magic man” vs the guy that runs slower than the calculator says, he becomes the guy that doesn’t know WTF he’s doing and a dumb fracker.