Airbus TPs did some trials on emergency manual braking vs max auto braking.None of the TPs could beat the AB;partly because most would not apply the unnatural amount of pressure required-those that did initially could not maintain the pressures throughout deceleration.Pilots who were left brain dominant were able to maintain pressure on the right side for longer,vice versa.Some of the max auto brake trials resulted in multiple tyre failure as the a/c came to a stop.