When I'm setting my upper back, I'll scooch myself down the bench towards my feet. Then I pull the shoulders together and then push from my feet, keeping the shoulders together to drive the shoulders down. So there's
the two biggest things we want to think about in our shoulders is pulling them together and then pulling them down
towards your butt. When you're in the right spot you should feel most of the pressure of your bodyweight at this
point on your upper traps. Then what you want to do set your butt down, keeping your shoulders tight.