I'm not sure what the hand positions on the bar are called, so lets call...
Front = hand position closest to the rider, most upright
Sides = obvious
Rear = hand position furthest from the rider, more forward leaning, aero

Most pics of setups show the brakes on the front position. So if your hands are in the rear position, how do you brake quickly? Do you try and lift up against gravity and rush your hands back to the front position? Or do you just avoid the rear position?
Seems to me that the only way i would like these bars would be to have dual brake levers, one set on the front and another on the rear. Good or bad idea?
Anyone with experience with these bars find it sometimes difficult to quickly grab the brake lever?