UTG engine build "callout"

But compression isn't the advantage they are looking for, is it??? I thought it was to have a better angle on pushing the crank down on the power stroke ???? That was my understanding of the old trick from DC... I could be wrong.
It's been mentioned in this thread numerous times that it's to help compression, but it surely doesn't. And the angle the rod pushes on the crank changes throughout the stroke, so I doubt that amounts to anything either