Broke drilled his crew to an extremely high standard of naval gunnery; he regularly had them fire at targets, such as floating barrels. Often these drills would be made into competitions to see which gun crew could hit the target first and how fast they could do so. He even had his gun crews fire at targets 'blindfold' to good effect; they were only given the bearing to lay their gun on without being allowed to sight the gun on the target themselves. This constituted a very early example of 'director firing'.