* Trigger rate is affected by the Level and luck {{Luck}} stat of the participating ships.<ref>https://twitter.com/dewydrops/status/1181520911444271105?s=19</ref>
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** If all three ships are lv.99 the trigger rate is around 60%~65%.
* Can be triggered even if artillery spotting fails to activate.
* Can be triggered even if artillery spotting fails to activate.
* Can only be activated '''once per sortie'''.
* Can only be activated '''once per sortie'''.
* Has a chance to trigger every time Nelson takes a turn at shelling.
* Has a chance to trigger every time Nelson takes a turn at shelling.
** In single fleet, if it fails to trigger in day battle, there is a chance to trigger it in the follow-up night battle.
** In single fleet, if it fails to trigger in day battle, there is a chance to trigger it in the follow-up night battle.
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* Trigger rate is believed to be related to:
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** The total level of all girls involved in the attack
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** If all three ships are lv.99 the trigger rate is around 60%~65%.
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* Trigger rate is affected by Nelson's luck {{Luck}} stat.<ref>https://twitter.com/dewydrops/status/1181520911444271105?s=19</ref>