You always have to maintain contact with the bar on the shin, and where I really wedge my hips under the bar - I aggressively pull this bar into my shins and drag it up a little bit. I don't ramp it up my quads or my shins or anything but I really make sure it's always dug into my shins. You always want to ensure we have the best leverage and that bar is always maintaining position against the shins the entire way up.