EZY Airbus 319 Fleet, conduct every takeoff with the Pack's OFF. They are selected off just before line up and they are put back on after reduction to climb thrust (1500 ft AGL) with a 10 second interval to soften the blast for the benifit of the PAX. This is a fuel saving SOP and has been standard in the company for a few years. I think there are a few other BUS operators that use this SOP.
