The deadlift is a total body movement. Driving the hips forward is the toughest part for some people. You may notice that Hannibal's location reads: F/N the bar. This is how you move a heavy dead...pull back and drive forward with your hips. However, in that pic, you are leaned REALLY far back. Like you drove your hips forward, and then some. C-ditty is right...that can really compromise your back. The picture gives the illsuion that you locked it and held it there, when in reality you may have just hit this point for a split second as you were locking out, just before returning to a normal upright stance...who knows. Sometimes in a Max Effort PR attempt, form gets sacrificed for numbers. Been there. In general, it does seem a waste of effort, and a greater risk, to pull the bar beyond lockout.