Many aspects of the battle have been the subject of both contemporary and historical debate, beginning right after the battle. On 6 September, Admiral Graves issued a memorandum justifying his use of the conflicting signals, indicating that " the signal for the line of battle ahead is out at the same time with the signal for battle, it is not to be understood that the latter signal shall be rendered ineffectual by a too strict adherence to the former." Hood, in commentary written on the reverse of his copy, observed that this eliminated any possibility of engaging an enemy who was disordered, since it would require the British line to also be disordered. Instead, he maintained, "the British fleet should be as compact as possible, in order to take the critical moment of an advantage opening ..." Others criticise Hood because he "did not wholeheartedly aid his chief", and that a lesser officer "would have been court-martialled for not doing his "utmost" to engage the enemy."