Alright. But then I read this:
"Æro levers are generally an improvement over the older type. The pivots are located differently, making it possible to get fairly serious braking from the position where the rider's hand is on top of the lever hood. Non-æro levers would permit the use of this position for gentle deceleration only."
That means that brake levers don't have to move much to get 'serious" braking. See the contradiction?